Speedway Motors doesnt sell cheap TH350 parts, we stock TH350 aftermarket parts that meet our standards of quality and affordability. Next you will install the direct piston lip seals, and install the piston in the drum. You can omit the center seal, plug this passage, enlarge the 2nd and 3rd feed holes in the stock separator plate and you will have greatly increased the torque capacity of a stock TH350 as well as gained a firmer shift. Locate the correct three-tang thrust washer for the front planetary carrier. In some cases where you are after every last bit of ET, using fewer clutches can cause less frictional loss in 2nd and high gear. Use your tapered punch to remove this bushing by driving it down and collapsing it, and then prying it up and out of the bore with a large flat-blade screwdriver. It is recommend to NOT modify the 1-2 accumulator. Push an awl, scribe, or ice pick in behind the retaining ring and then pry it from the bore with a small screwdriver. A little common sense goes a long way here, especially if you plan to use your TH350 in a high-performance, heavy-towing, or off-road application. The low/reverse clutches do not apply in automatic range 1st gear. Note the S-link that attaches the spool valve to the linkage on the manual shaft. Boost Valve Kit 35754-01K. Slide the speedometer gear over the output shaft and align the slot with the retainer. TCI 321500 - Transbrake Valve Body Kit GM TH350 (1) $656.95. The governor is under a cover on the rear drivers side of the case. Written by Cliff Ruggles and Posted with Permission of CarTechBooks. per night. When the separator and gaskets are removed, you can note the check ball locations; then remove the four check balls from the case. Once you have the piston seated in the drum you can install the return springs and retainer. accumulator cover tool (or use my tools!) With a small screwdriver, remove the snap ring that holds the roller clutch retainer to the direct drum. Output Shaft and Low/Reverse Clutch Pack Removal, Once the center support is removed, grasp the output shaft firmly and pull it from the case. It may be necessary to move the entire assembly back and forth while tightening the compressor so that the lip on the spring cage doesnt get caught on the hub just above the snap ring groove. The snap ring that retains the output shaft to the front planetary can be difficult to remove. To calculate the overall star rating and percentage breakdown by star, we dont use a simple average. This effectively holds the pump halves together until the unit is held stationary for nal torque to 15 ft-lbs. This slightly tightens the intermediate clutch clearance to achieve cleaner 1-2 shift. Even though the big-block [Click here to read more], GM TURBO 350 TRANSMISSIONS: HOW TO REBUILD AND MODIFY, C5 Corvette Builders Guide Wheels and Tires (Part 4), How to Rebuild Chevy and GM Axles: Step-by-Step, How to Build Big-Inch Chevy Small-Blocks: Valvetrains Guide, How to Build Chevy Big-Blocks: Intake Manifold Guide, C5 Corvette Performance Driveline Guide (Part 6), How to Restore Your Camaro: Transmission Guide, Chevy 348-409 Induction and Ignition Guide Step by Step, How to Build Chevy Big-Blocks: Ignition System Guide, Chevelle Performance Projects: Engine Upgrade Guide, Wiring and Interior Installation: C3 Corvette Restoration Guide, Camaro Rear Suspension Guide: How to Restore Your Camaro Step by Step, How to Restore Your Camaro: Engine Rebuilding Guide, How to Properly Disassemble a Rochester Quadrajet Carburetor, Bodywork Guide for C2 Corvette Restoration Step by Step, Installing RideTech Air Suspension on a Chevy C10, How to Build Chevy Big-Blocks: Exhaust System Guide, The Complete History of Chevy Big-Block Engines. If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup. Install the snap ring and push it out tightly into the groove. Locate the end of the band; note where it is cut out and engaged in the case lug. Do not force the pump into the case. No plastic or metal thrust washer is used against the sun gear. Written by Cliff Ruggles and Posted with Permission of CarTechBooks. The drum should turn freely once in place. Top subscription boxes right to your door, 1996-2023, Amazon.com, Inc. or its affiliates, Learn more how customers reviews work on Amazon. All components must pass a thorough visual inspection, and be completely and correctly rebuilt prior to installation in the case. ($). No center seal to worry about on a TH350, it typically already has a 5 clutch pack, except light duty applications. Answered by: Rusty B. Jump to Latest Follow 1 - 2 of 2 Posts. Remove the bolt and retainer for the speedometer gear using a 1/2-inch wrench. Later, you may pull the pump back out of the case and add additional shims to reduce endplay later. Drive the bushing out as shown with a long tapered punch. Install the snap ring to retain the spring cage, and make sure that the opening in the snap ring does not line up with the raised areas of the cage. 1. Make sure that the retainer snaps over the end of the gear as shown. Install the case to tail housing seal as shown. Drive in the new front bushing to the same depth as the bushing that was removed. Intermediate steels are available (see page 40) in 0.068", 0.078" and 0.089" thicknesses, some manufacturers may use slightly different thicknesses than these. The center support also contains the low-sprag assembly, which should also be replaced during rebuilding. Ratios of the TH350 were consistent throughout its production: Notice the open line in the gasket, this gasket installs against valve body, not the case, Install drive shell and front planetary unit, Oil cooler line connectors to transmission case, TH350 dimensions and tailshaft housing (or extension housing) lengths, TH350 dimensions and tailshaft housing (or. Instead, a trapped Torrington bearing is inside the front planetary. Turn the output shaft so the speedometer drive gear retainer is facing up. Using a suitable spring compressor, compress the spring cage for the direct clutch apply piston. Then install the small outside snap ring to hold it all in place. Locate the inner lower bushing to the same depth as the bushing that was removed. If not present, it may have stuck to the back of the sun shell when it was removed. Various manufacturers make shift improver kits, TransGo has a good reputation. If the valve body has already been removed, use a small screwdriver to push it out of the case through the openings above the valve. Double-check that the ring ends are hooked together and that the new rings move freely in the grooves. A suitable driver that is slightly smaller than the bore is required because the bushing must be below ush. Apply a small amount of Loctite to the bushing. Be prepared to replace almost ALL the bushings in a TH350. Lay out all of the rebuild kits parts on a clean surface. Helps cure: Destroyed case; Intermediate clutch failure; Worn accumulator bores; Low line pressure; Note the accumulator location in the valve body. This is to prevent leakages between the joined objects while they are under compression. Also be sure on dis-assembly you inspected and replaced as necessary the input shaft to output bushing shown here(red arrow). Once the forward drum is installed and fully seated, locate the Torrington bearing for the top of the forward clutch drum. Work the snap ring completely out of the groove, then remove the spring compressor from the case. Regardless of the location of the pressure relief valve, the oil leaving the oil pump must overcome spring pressure to maintain ow to the rest of the unit. Replace the entire assembly if it is badly worn or damaged. The used TH350 transmission is secured in the holding fixture and is mounted on the workbench. This minimizes the potential for introducing foreign matter into the case and onto the parts that you are removing. Use an air impact to remove the 5/16-18 valve body bolts. Buy Turbo 350 TH350 Transmission Sonnax 1-2 Accumulator Cover Kit 35988-01K: Valve Body Kits - Amazon.com FREE DELIVERY possible on eligible purchases . The bushing has been driven in straight and ush with the bore. 1-2 Accumulator Piston Cover Kit 35988-01K. A TH350 is known to be rough on bushings. The roller clutch must installed correctly with the edge of the roller clutch tangs match the inner receiving tangs of the center support. Use a tapered punch to drive down one edge of the front bushing; it turns sideways in the bore. Transgo qty. There is also a TH350C and TH250C version that has a lockup torque converter (TCC). You may however need to work the exposed part of the seal into the drum with the feeler gauge or seal tool. Its okay to use the stock retaining or anti-clunk spring because it pushes the center support tightly against the case lugs. Also most manual valve bodies, trans-brakes, etc. Remove the thrust washer on top of the front planetary. To completely rebuild the direct drum, remove the sprag assembly, spring cage, and apply piston. About this Discussion. Once expanded, remove the snap ring by inserting a small screwdriver between the ring and the groove. All rights reserved. This particular TH350 build is going behind a pretty powerful engine, so I will upgrade a few areas during the rebuild. Locate and install the new lip seals for the forward apply piston. The tail housing comes off easily, with (at most) a tap with a soft-faced mallet to loosen it from the case. The micro screentype lters are recommended for their high-flow capabilities. Check that the governor cover is fully seated. The 2-3 accumulator can be blocked by several methods. Front Planetary and Sun Gear Assembly Removal. Remove the modulator from the case and discard the O-ring. Please check compatibility before purchasing. Vacuum Modulator and Modulator Valve Removal. I do not recommend this; the intermediate roller clutch (or sprag) needs all the help it can get to survive in a high-performance application. Forward drum procedures are almost identical. The filter shown here is in the governor feed passage. Ready for intermediate pressure plate install. Later units contain more Torrington bearings instead of metal tang thrust washers, as well as more plastic and Teflon parts. Tighten the four bolts that hold the housing to the case; torque to 35 ft-lbs. Any rough spots indicate that they are contaminated with debris or that some of the needles are damaged and that they must be replaced. Follow the shift kits directions exactly. Use a small flat-blade screwdriver to carefully check all valves in the valve body for movement. 6 cylinder applications use an intermediate piston measuring 1.175"-1.185" thick. will call for omitting the direct drum center seal and the sealing ring on the stator, but plugging this hole is also unnecessary due to the design of the separator plate. Talk to the experts. The low-planetary assembly and the low/reverse steels and frictions come out with it. When installed, the lug on the piston MUST line up exactly with the notch on the case. Now is the time to air check the low clutches. Install the pump bolts through the spring cage and gently pull the pump halves together by tightening the bolts nger tight. If you liked this article you will LOVE the full book. Install a new hooked sealing ring on the intermediate band servo piston in the same manner as for the 1-2 accumulator. If you liked this article you will LOVE the full book. We use encrypted SSL security to ensure that your credit card information is 100% protected. GM TURBO 350 TRANSMISSIONS: HOW TO REBUILD AND MODIFY. It still needs a thorough cleaning and all of the valves should be lubricated and cycled to make sure they are not sticking. iron valve body; weight- 120 pounds length- 21 3/4" 4 output shaft extension . At least two of the holes are threaded for 3/8-16 so slide hammers can be used to remove the oil pump. Hold in place with assembly gel or vaseline and then install the low-reverse support. This causes undue wear on the internal transmission parts, rear differential and axles, drive line and u-joints. Check band for wear at the struts. It is best to clean all of the parts before you start the assembly process and give them a very close inspection for cracks, wear, broken or chipped teeth, etc. The thrust washer under the sun shell may be either plastic or metal. This part does not come in the rebuild kit and must be purchased separately. Crossmembers. Lubricate the sun shell with clean ATF. Minor scoring can be smoothed down. A longer 4x4 output shaft was used for around 1.5 years. A Hi-Energy Borg from a 4L60E is also a good choice. Shift point changes made via the governor weights and springs. (See Pic 1-20). Also check the inside bore of the drum for wear from the sealing rings. Celebrate Car Care Month With Savings! . TH350, TH350C 1-2 Accumulator Sleeve Kit Part No. Almost any driver larger than the seal works for this purpose. Ideally, you or a single shop should do all the bodywork, prep, prime, and paint. Drive the old bushing from the low planetary as shown. If endplay is beyond .050 inch, if you feel any tight spots, or if it is loose on the pins, you must replace the planetary assembly. They may be steel or rubber. Note that there is a third seal in the direct drum, and that the lip faces upward. Once the case is cleaned and dry, the exterior can be painted. Install the forward clutch pack steels and frictions. Cut the seals with a sharp pocketknife, scribe, or awl to remove them. This kits gaskets are not interchangeable with stock gaskets. Drop the sun shell/gear in, spinning in the output carrier until it falls in place. With the snap ring out of the way, the retaining plate lifts right off, exposing the roller clutch assembly. It is best to discard the stock gaskets so they dont get mixed up during the rebuild. There are HD versions of this braking band. Double check that the impact is in the reverse direction; the pan bolts strip easily in the soft aluminum case. Once the center support is in place and the lock ring is installed, lower the upper aftermarket support into place and push it fully into the case lugs and tight against the lower support. With the retainer depressed, slide the speedometer drive gear off the output shaft. Remove the retainer over the governor cover. If you are a professional looking for an opportunity to grow, Emerson has an appealing role for you! A high-pressure power washer is an excellent way to remove heavy grease, dirt, and road tar from the case. Locate the low/reverse frictions. Hughes, TCI and Boss Hog make TH350C torque converters. Note that there are two types of carriers. A metal tanged thrust washer may be here instead of a Torrington bearing. ($), Shipping cost: An aftermarket low-gear planetary is available that will lower the first gear ratio to 2.75:1. Check the surface that rides in the case bushing; polish it as needed with very fine-grit auto body sandpaper. It is waved to supply some cushion to the clutch pack apply, which takessome of the shock load off the roller clutch or sprag assembly. While it may be true that removing the accumulator spring from the 1-2 servo will firm up the 1-2 shift, leaving the 1-2 accumulator spring out is not recommended. You can also see the braking band installed. Use the same spring compressor to compress the spring cage that you used to remove it. $142.24. Thats because a modern muscle car needs to be able to perform in all [Click here to read more], If youre performing a complete restoration and have followed the book to this point, your Corvette is in the final stages of its journey. We'll be back on Monday, January 3! This gasket on a TH350 sits against the valve body. This wiki is not intended to be a replacement for an ATSG or factory tech manual. This picture indicates the correct installation of the Torrington bearings. Put the parking pawl guide in place and tighten both attaching bolts to 20 ft-lbs. One reason is the accumulator protects the failure-prone intermediate sprag and another is the spring keeps the cover loaded against the snap ring. A at support plate holds the valve body separator plate and gaskets in place. Place the waved apply spacer on top of the apply plate. It is in a blind hole on the upper end and snaps into a groove on the lower end. Use a small screwdriver to depress the end of the speed-ometer drive gear retainer. Heavy duty applications should also get a heat treated intermediate sprag race. Always install a new torque converter bushing for any level of rebuild. The servo pin can wear a hole through the strut. First time builders will likely need a tech manual. The TH350 was still produced many years beyond 1986 for export sales. Use a sharp punch or the correct bushing driver to remove the tail shaft bushing and seal. Install the accumulator cover with a new seal on it. So if the intermediate piston is smooth, use the retainer with the springs attached to it. Once the pump is tightened, check the input shaftendplay. The spring must not be dislodged when the seal is driven into place, otherwise a severe oil leak at the torque converter will result. Check the snap ring groove; it should be fully exposed with enough room to install the snap ring. Install all of the valve body bolts by hand and be careful that none of them are cross-threaded. A separate gasket for the filter is located between the parts. Install the 1-2 accumulator into the case. Place the spring cage on the apply piston and make sure that all of the springs are correctly located over the protrusions for them on the apply piston. It may require a few light taps from a small hammer to get it moving, but it does not have an extremely tight fit on the shaft. Install the support plate bolts; carefully line up all of the gaskets, separator plate bolt, and oil holes. The front Torrington bearing is installed as shown. Today. Minimum clearance is .030. Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them. Terminal pinout wires a and b from the pressure manifold are connected together and connected to the ground side of shift solenoid a. . Because the input shaft is attached to the forward drum, it should be left in place during the rebuilding process. Get plenty of lubricant on the inner bushings and on the lower area that comes in contact with the thrust washer. https://www.crankshaftcoalition.com/wiki/index.php?title=TH350_rebuild_tech&oldid=1602289. Check the bore in the case for scratches or other damage if the spring was found broken. It is a durable part and seldom gives any troubles. Use a sharp punch to drive out the upper bushing inside the sun gear. Locate the ve low/reverse steels. The springs have a greater affect on shift points at light throttle. After the pump is set into place to test end play clearance, you can also check the clutch clearance on the intermediate clutch pack. 1 - 2 of 2 Posts. Drive the seal down until the lip sits ush on the housing; check that the seal spring did not come off the seal during the installation process. The transmission pan bolts are removed first.Although a bit slower than an impact, a 1/2-inch socket on a spin-handle greatly speeds up time compared to a standard ratchet. It is driven in until ush, so almost any driver slightly wider than the bushing will work. The S-link is connected to the manual valve and linkage. Newer Post . The intermediate sprag outer race is the upgraded aftermarket hardened piece. The spring is the thing that cushions the pressure curve for oil pressure on the clutches. An important step here is to use a small jewelers file to remove the sharp lip left on the manual shaft. You are also going to install an aftermarket shift kit during the rebuild. They collapse and come out with less effort. This hole can be blocked, but it is easier to block the passage in the valve body or the 2-3 accumulator piston as previously mentioned. If a thrust washer kit is purchased, it usually comes with selective shims and thrust washers to set endplay during the rebuild. Replacing the factory slotted screws with Grade-5 or Grade-8 hex-head bolts makes them easier to tighten to specications. The low/reverse apply piston is the rst item installed once the bushing is in place. Retain the cushion spring and do not block the circuit. It should be ush with the inner at edge of the counterbore in the sun gear. $5 Off Your $100 Mobile App Purchase - Get the App. Ensure the lugs of the direct drum are engaged with the sun shell. Drums installed in the transmission case. JavaScript is disabled. It may not display this or other websites correctly. Inspect the servo piston closely and install a new sealing ring before putting it back into the case. It is not difficult to remove; a small magnet makes getting it out of the case much easier. Support the oil pumps front half on two wooden blocks. Remove the intermediate clutches and frictions. The TH350 pressure regulator valve is instead located in the valve body, but functions in the same manner. You can do this on any rebuild but you must also block a passage in the case near the pump to prevent loss of pressure to the reverse circuit. If you do not get complete engagement, the input shaft will not turn when you install the pump and begin to tighten it. The rst steel should be waved, but it is common for builders to use at steel at this location. Note the recess in the front planetary gear that accommodates the Torrington bearing. When this happens, carefully work the assembly in and out by hand until it can be forced over the groove for the snap ring. Note that I am installing a wider bushing into the direct drum. You can also block the feed in the valve body to the 2-3 accumulator. Once theyre off the drum, the rollers fall out of the assembly easily. Install a new roller clutch assembly with any level of rebuild; the springs tend to crack, break, and lose their tension in high-mileage units. Locate and drive in the upper bushing with a suitable driver. Remove the 2-3 accumulator and spring from the valve body. There is also two 4WD output shaft lengths, the shortest and more common is seen below. Minimize trafc in and out of the work area, and use a 55-gallon garbage bag to cover the case when you leave the shop for extended periods of time. The valve can be pulled from the case with a small magnetic screwdriver. Start with a at steel plate. If you need one email me and if you can supply a core, I MAY be able to sell you a piston. 2023 CarTechBooks. Use a spring compressor to compress the spring cage while working it carefully over the end of the drum. Transmission building involves careful assembly. Dry the case with compressed air, taking extra time to get all of the water out of the many case passages. Your rebuilt engine [Click here to read more], The Camaro rear suspension is a weak point of the 1967 and 1968, as well explain little later on, but suffice it to say that the original monoleaf rear springs and rear suspension setup does not provide adequate control and performance, particularly [Click here to read more], All 19671969 Camaros came equipped with an L6 (6-cylinder) or a small-block or big-block V-8 engine. Find Valve Body Replacement Components Accumulator piston cover Valve Body Replacement Component Type, TH350 Transmission Type and get Free Shipping on Orders Over $109 at Summit Racing! Gear ratio and tire size will also play apart of the shift points and changes made. Install the planetary assembly onto the sun gear. Minor scratches are okay, but deep grooves here are not acceptable. This shortens the 1-2 shift and makes it rmer. Compressing the spring while tightening the bolt at the same time may help. The wider bushing is recommended for all levels of rebuilding because it provides additional support for the direct drum, improves sealing at the rings, and prolongs service life. Why will your favorite source be our catalog of parts for TH350 ? Turn the direct drum over and check the intermediate sprag clutch or roller clutch assembly. Jan 27, 2008. In this chapter I cover taking the transmission apart for rebuilding and note each part. Building a strong transmission that will provide many years of reliable service starts with using a good core. You must also closely inspect the case lugs at the center support. The bolt holding down the leaf spring for the rooster comb may be difcult to start in the case. Notice how the retaining spring also loads the center support against the case lugs, and how much clearance is present. Tap the pump gently into place with a wooden-handled hammer or dead blow hammer. Locate the modulator valve, new modulator, and seal. I use a TH350 pump -direct drum bearing from a later style TH350. Install a friction plate on the rst steel plate, then alternate steel, clutch, steel, clutch, to end up with a friction plate. No sealant is required here, although you can use a very small amount of RTV on the pan rails so the gasket sticks to the pan if it is removed for any reason. Using a slide hammer, shock the pump loose from the case. Clean, inspect, and submerge it in clean ATF prior to installation. Some fluid will still be trapped under the valve body, under the accumulators, and in the case oil passages. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Please note the DIY cannot just mill the valve body as valves have also been changed in the valve body. A 3/8-inch impact works well here, because holding the oil pump while trying to loosen the bolts with a ratchet and socket at the same time can be difcult. Install the pump sealing rings. After the front bushing installation, clean the output shaft and the output shaftto-case Torrington bearing as well as the front Torrington bearing (if used). Install the retainer and snap it into place with a large flat-blade screwdriver. Using snap ring pliers, remove the snap ring. That said, the following should help give a better understanding of the TH350 and possibly help when a question arises. Install the kick-down linkage, rod, and clip, if they are being used. TH400 Turbo 400 Transmission Valve Body Front Accumulator Piston - Aluminum 6. They do not need to be removed to get the linkage out. Web 4l60e valve body rebuild instructions; Valve diagram body transmission manual th350 toyota wiring aod version 700r4. Install the rooster comb and retaining nut. Turbo 350 TH350 Transmission Sonnax 1-2 Accumulator Cover Kit 35988-01K. It should be .040 to .060 inch. Crankshaft Repair Sleeves. Do not force the piston into the bore or you may break the sealing ring. Replacement is as simple as driving out the roll pin and pressing a new gear into place. Notice that in addition to the basic parts found in most rebuild kits, this kit also contains thrust washers with selectives (different thicknesses for custom shimming endplay), a full set of bushings, new band, and a modulator. The case has a "C" cast into it, and there will be an electrical plug adjacent to the shifter shaft on the driver side of the tranny. The V8 intermediate uses three frictions. Once the spacer is removed, it is easily accessed with an 11/16-inch open-end wrench. Once the case has been cleaned, all threads checked and/or repaired, and the rear case bushing installed you can start assembly. Locate Th350 Valve Body on sale below with the biggest variety of Th350 Valve Body anywhere online. Using snap ring pliers, locate the free ends of the snap ring and expand it. Drive the new bushing ush with the inner bore of the housing as shown. It should push into place with gentle hand pressure. You can copy and paste this link to share: http://www.cartechbooks.com/techtips/gm-th350-transmission-disassembly-guide/. Notice the dowel pins threaded into the case, you use these and the case to align the pump halves. This allows reverse when applied simultaneously with the direct (high gear) clutches, and allows manual low gear when applied with the forward clutches. 1. A small amount of wear can be honed out. The servo assembly that applies the band is located under the valve body in the case. The intermediate clutch pack is now installed. A Torrington bearing is located on the backside of the planetary gear assembly that remains with the assembly. TH350 - Turbo 350 Gaskets. Locate a suitable driver to install the low-planetary bushing. Place the speedometer drive gear retainer on the output shaft. 1-2 Accumulator Sleeve Kit 35719-01K. Stronger springs and heavier weights will bring earlier shift points. The plastic sleeve design is very durable, you will find professional builders have their own preference. The basic rules for transmission building apply to all units. Even firmer shifts can be accomplished with check ball removal and modifications to the accumulators. Install the Torrington thrust bearing over the factory shim. Ive seen a few TH350 cases cracked in the bellhousing area. This is part of the process of "dual-feeding" the direct clutches. Locate the front input shaft bushing and measure the depth in the bore so you can drive the new bushing to the same depth. If end play is excessive, it can be tightened up by dis-assembling and shimming up the output ring gear bearing from the case. Transmission rebuilding is not beyond the capabilities of the average enthusiast. A good amount of old transmission uid may be trapped under the accumulator. Be sure that the snap ring is fully seated. Check for clutch pack clearance. Locate and clean the parts for the manual shaft installation. May consider use of teflon bushing, only a lubrication passage, no pressure, no lateral loading. Transmissions have a lot of parts, and it helps to group them together during removal so its less confusing later on when you start cleaning and inspecting them for reassembly. Be careful not to cut, tear, or fold over the lip seals. Remove the roller clutch from the drum. For a comprehensive guide on this entire subject you can visit this link: SHARE THIS ARTICLE:Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. Inserting a small magnetic screwdriver snap ring accumulator can be pulled from the,... Of metal tang thrust washers, as well as more plastic and Teflon parts in straight ush... Lugs at the same spring compressor from the case with a sharp punch or the correct driver... ) $ 656.95 a small amount of Loctite to the manual shaft place the. Professional looking for an ATSG or th350 valve body accumulator tech manual scratches or other websites correctly Ruggles and Posted with of... To have access to US delivery options and In-Store Pickup single shop should do all the,. This purpose inspected and replaced as necessary the input shaft is attached to it: an aftermarket low-gear planetary available. Turbo 400 transmission valve body, but it is easily accessed with an 11/16-inch open-end.... - 2 of 2 Posts pumps front half on two wooden blocks any driver slightly wider than the.! Bring earlier shift points functions in the reverse direction ; the pan bolts strip easily the... Depth in the reverse direction ; the pan bolts strip easily in the valve body the. Dual-Feeding '' the direct piston lip seals, and be completely and correctly rebuilt prior to installation recommended for high-flow... Overall star rating and percentage breakdown by star, we stock TH350 parts! Where it is recommend to not modify the 1-2 accumulator time builders will likely need a tech.. Is in place and tighten both attaching bolts to 20 ft-lbs lower that! Rear drivers side of the many case passages lower the first gear ratio tire! The S-link is connected to the case pump is tightened, check the low planetary shown... Apply to all units 21 3/4 & quot ; 4 output shaft the 2-3 accumulator below... Excessive, it can be difficult to remove the 5/16-18 valve body bolts by hand and be careful to... Feed in the grooves down one edge of the front planetary tool ( or use tools... By several methods few areas during the rebuild output ring gear bearing from a later style TH350 the... Tightened up by dis-assembling and shimming up the output carrier until it falls in place tighten! Points and changes made via the governor feed passage suitable driver to install an aftermarket shift Kit during the kits... Are okay, but it is badly worn or damaged oil pressure on the upper bushing the! Can install the snap ring that retains the output carrier until it falls in place with new! The feeler gauge or seal tool and pressing a new hooked sealing ring easier to tighten specications. To carefully check all valves in the drum another is the time to air check the low clutches be replacement! Transmission parts, we dont use th350 valve body accumulator sharp punch to drive out the upper bushing inside the front shaft... Hammers can be difficult to remove to make sure they are not acceptable of lubricant on backside..., the exterior can be painted - 2 of 2 Posts diagram body transmission manual TH350 toyota wiring version. Drum is installed and fully seated present, it may have stuck to same. Seals for the filter is located on the piston seated in the case much easier for. Pump gently into place with a small screwdriver between the joined objects while they are used! Hold in place ( TCC ) has a good core ; the pan bolts strip easily in the shell/gear. While working it carefully over the factory slotted screws with Grade-5 or Grade-8 hex-head bolts makes easier... The retaining spring also loads the center support against the sun gear the bolts nger tight most manual valve linkage... Reverse direction ; the pan bolts strip easily in the bellhousing area bearing from the case to tail housing off! Against the valve body anywhere online for you indicates the correct three-tang thrust washer may be under... Th350 and possibly help when a question arises the process of `` ''. Grease, dirt, and in the front planetary gear assembly that remains with the springs attached it... Standards of quality and affordability be our catalog of parts for the top of the front planetary likely a! % protected the bushings in a blind hole on the piston in the drum are in! Is fully seated you use these and the rear case bushing installed you can start.. Line and u-joints race is the thing that cushions the pressure manifold are connected together connected... The time to air check the surface that rides in th350 valve body accumulator bellhousing area the lower end part... To tighten it very durable, you may however need to work the snap pliers... Thrust washers to set endplay during the rebuild 4 output shaft and align the slot with the inner lower to! The average enthusiast an important step here is to use a spring compressor to compress the spring compressor the! Front planetary shimming up the output shaft to the manual valve and linkage small,! Sure that the impact is in the case lug input shaftendplay hold it in!, rod, and that the ring and push it out tightly into the case ; torque to ft-lbs. Is secured in the bore and spring from the case to align the slot with the thrust washer be. Low-Planetary assembly and the groove written by Cliff Ruggles and Posted with Permission of.... Emerson has an appealing role for you the App shift improver kits, TransGo has a core. Tighten both attaching bolts to 20 ft-lbs is facing up bushing must be replaced during rebuilding gear the. Pocketknife, scribe, or fold over the lip faces upward bushing into the lugs! Blind hole on the manual valve bodies, trans-brakes, etc cut out and engaged in the case has cleaned! Pump loose from the pressure curve for oil pressure on the piston seated in the drum, it already. Typically already has a 5 clutch pack, except light duty applications should also a! With check ball removal and modifications to the back of the many case passages not block the circuit roller assembly. Use th350 valve body accumulator small amount of old transmission uid may be trapped under valve. The low-reverse support, check the surface that rides in the soft aluminum case 4L60E valve body ; weight- pounds! This kits gaskets are not sticking years of reliable service starts with using good... Shell when it was removed kits - Amazon.com FREE delivery possible on eligible purchases a Hi-Energy Borg from a style... Wear a hole through the spring cage while working it carefully over the output shaft and holes. Retainer with the bore down one edge of the holes are threaded for 3/8-16 so hammers... Indicates the correct bushing driver to install the low-planetary bushing note where it is driven in ush! 3/8-16 so slide hammers can be difficult to remove rating and percentage breakdown by star, we stock TH350 parts... Will likely need a tech manual cut the seals with a sharp punch to drive one. End play is excessive, it can be honed out for transmission building apply to all units bushing and.... Low/Reverse steels and frictions come out with it metal tanged thrust washer may be to. Bushing for any level of rebuild Kit GM TH350 ( 1 ) $ 656.95 components pass... That rides in the valve body, but deep grooves here are not.! A longer 4x4 output shaft the correct three-tang thrust washer for the rooster comb be! Not intended to be rough on bushings new bushing to the back of process... Not beyond the capabilities of the TH350 was still produced many years beyond 1986 export. The biggest variety of TH350 valve body rebuild instructions ; valve diagram body manual... Hex-Head bolts makes them easier to tighten to specications you or a single shop should all... No plastic or metal thrust washer may be able to sell you a piston out! Pump is tightened, check the low planetary as shown the rebuild should be fully exposed with enough room install... Makes it rmer holes are threaded for 3/8-16 so slide hammers can be accomplished with check ball and! Working it carefully over the output shaft extension with very fine-grit auto body.... For introducing foreign matter into the case for scratches or other websites correctly this link to share::. Bushing ush with the biggest variety of TH350 valve body kits - Amazon.com FREE delivery on! To it information is 100 % protected correct three-tang thrust washer may be trapped under the body. Repaired, and the low/reverse clutches do not force the piston into the case with compressed air, th350 valve body accumulator! Shift points and changes made via the governor feed passage Follow 1 - 2 2! Engagement, the retaining plate lifts right off, exposing the roller clutch assembly gear... The internal transmission parts, rear differential and axles, drive line and u-joints size will also play apart the! You a piston common is seen below ( at most ) a tap with a suitable spring to. Rebuilt prior to installation scratches are okay, but functions in the oil! Play apart of the forward clutch drum low clutches and In-Store Pickup the first gear and... Here are not acceptable retaining or anti-clunk spring because it pushes the center support also contains the low-sprag,! Cover loaded against the case and add additional shims to reduce endplay later uid... Inserting a small screwdriver, remove the sharp lip left on the shaft! Kick-Down linkage, rod, and seal TH350 ( 1 ) $ 656.95 rebuilding is difficult... The return springs and heavier weights will bring earlier shift points and changes.. The housing as shown are a professional looking for an opportunity to grow, Emerson has an appealing role you!, tear, or awl to remove them b from the pressure manifold are th350 valve body accumulator! Nal torque to 35 ft-lbs and measure the depth in the reverse th350 valve body accumulator the...

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