Make sure to use some red Loctite on the bushing. Speedway Motors doesnt sell cheap TH350 parts, we stock TH350 aftermarket parts that meet our standards of quality and affordability. This can be accomplished on a brake lathe. From short tracks to drag strips and car shows to museums, the Turbo 350 transmission can be found in a variety of vehicles. Most handles on bushing driver sets are far too short. The governor is under a cover on the rear drivers side of the case. If not, the roller clutch or outer race is not fully seated. Once the pump is tightened, check the input shaftendplay. The later retainer has the springs attached to their respective retainers (the bosses are not used). It is important to turn the apply piston and use gentle downforce at the same time. accumulator cover tool (or use my tools!) It is also set slightly below ush in the case to allow room for the lip of the output shafts Torrington bearing. However, it is very easy to make from a piece of hardened all-thread or a long threaded bolt, a socket, a nut, and a couple of pieces of at stock. Install a friction plate against the backing plate and continue to install the rest of the clutch pack. Clean the 2-3 accumulator, spring; remove the old seal. Locate, clean, and inspect all of the parts for the intermediate band servo. Place the speedometer drive gear retainer on the output shaft. $8.89. Use a sharp pump to catch the edge of the torque converter bushing and drive it out of the housing. I have written this book with that in mind, and provided simple, thorough guidelines in the next two chapters. Next, install the return spring and retainer as shown. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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Using a punch or large flat-blade screwdriver, drive the cover off of the transmission. Reduce clearance of the stack to 0.040". The TH350 underwent several changes during its production years. The plastic bushing is ne; its much easier to install and works better than the metal bushing if the hub of the forward clutch that rides in the bushing is not in perfect condition. Also note that a bushing is inside the carrier to keep it centered on the planetary gears. One says to discard the spring, the other leaves it in. The S-link is connected to the manual valve and linkage. The check ball locations have been marked before removing them. This provides additional support for the drum and improved sealing at the sealing rings. Low/Reverse Apply Piston Removal. Case repairs and upgrades are covered later in this chapter. After everything is assembled, I place the drums on the pump (above a hole in the bench) with all sealing rings in place, thrust washers or bearings. The rear Torrington bearing is installed as shown. I use a TH350 pump -direct drum bearing from a later style TH350. Remove the bolt and clamp; the vacuum modulator and O-ring will pull easily out of the case. Double-check that the ring ends are hooked together and that the new rings move freely in the grooves. Install the new bushing from above. Once you have the piston seated in the drum you can install the return springs and retainer. A center support from a 1987-present 700R4 or 4L60E (including the aftermarket case saver with a bolt-on outer plate held with torx head bolts) can be used in place of the stock center support since the roller clutch is wider. Lubricate the sun shell with clean ATF. Drive the new bushing ush with the inner bore of the housing as shown. Terminal pinout wires a and b from the pressure manifold are connected together and connected to the ground side of shift solenoid a. . Using a suitable spring compressor, compress the spring cage for the direct clutch apply piston. 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. Install snap ring. JavaScript is disabled. Remove the 1-2 accumulator from the case. Remove the four sealing rings from the grooves in the pump support. Once the support plate is removed, the gaskets and separator plate lift off of the case. Tail Housing and Speedometer Gears Removal. This causes undue wear on the internal transmission parts, rear differential and axles, drive line and u-joints. They may be steel or rubber. There is another larger filter or oil pump pressure screen. Written by Cliff Ruggles and Posted with Permission of CarTechBooks. Tighten a couple of the bolts gently to keep the valve body in position. I will be posting pictures and instructions of an actual TH350 rebuild for hi-performance use. Ideally, you or a single shop should do all the bodywork, prep, prime, and paint. Clean the front planetary Torrington bearing with clean ATF. Be prepared and keep a large pan under the transmission the entire time. A large nut retains the shift linkage (rooster comb)to the manual shaft. Locate the front input shaft bushing and measure the depth in the bore so you can drive the new bushing to the same depth. The intermediate sprag race and sprag (actually a roller clutch) take a brutal amount of force on a 1-2 shift at high rpm. "Turbulator" steel plates from a 4L60E will also help and are a direct drop-in. ( 11 ), Estimated USA Ship Date: Almost any driver larger than the seal works for this purpose. There are thicker intermediate steel plates available if need to tighten up the clutch pack clearance. Slide the tail housing off the case and over the output shaft. Lower the valve body onto the case. Clearance of 0.030" to 0.050" is common. Even more so with harsher shift calibrations. Recommended is Ron Sessions' book. Copyright 1995-2023 eBay Inc. All Rights Reserved. The theory on a long lived setup is that the springs that force the rollers against the race must be in good condition to help the rollers grab quicker and more evenly on apply. If you choose a shop to do it, they can verify the quality of the work and guarantee the results. Drilling them bigger allows a faster apply. Speedway Motors has the best TH350 performance parts online. The case accumulator spring was probably left out, and the valve body accumulator might be upside-down and with the ears ground off of it. Drive the bushing out as shown with a long tapered punch. It may help to hold the output shaft while turning the planetary assembly to get it to drop onto the sun gear. Transmission Parts USA Competitors Price $28.41 . A retainer is used to secure the cover. Some fluid will still be trapped under the valve body, under the accumulators, and in the case oil passages. View cart for details. The bushing has been driven in straight and ush with the bore. Input shaft bushing installation can be difcult with the transmission. Having all the parts cleaned and ready to go reduces the amount of time that the case and parts are exposed to open air. The two-piece model on the left is not recommended for high-performance use. Tilt the transmission upward slightly during this procedure to keep the piston from coming out of the case and rolling out onto the shop oor. Make a couple of alignment studs from two long 5/16-18 coarse-threaded bolts. If you have access to a lathe, you can machine the apply piston to add an additional steel and friction. Use a suitable driver to install the manual shaft seal into the case. Install the kick-down linkage, rod, and clip, if they are being used. Below is a picture of the feed holes. Pull out the low/reverse sprag inner race. Clamp the output shaft in a vise with soft jaws. Note the depth of the last friction on the outer race. Use a suitable spring compressor to remove the snap ring, spring cage, and apply piston from the drum. Because the bolts are being tightened into a metal housing, its okay to turn down the pressure on a 3/8-inch impact and gently tighten the bolts. This wiki is not intended to be a replacement for an ATSG or factory tech manual. Replace the entire assembly if it is badly worn or damaged. This part does not come in the rebuild kit and must be purchased separately. However, if left in place, the parking pawl does not move far enough out of the way to allow the low/reverse piston to come out of the case later. Two hardened Grade-8 bolts hold the parking pawl guide in the case. Remove the front planetary carrier and thrust washer from the planetary gear assembly. Note any wear or hot spots on the surface where the frictions apply. Hold in place with assembly gel or vaseline and then install the low-reverse support. TH350 Accumulator cover, spring and piston with sealing rings Right side of TH350 case. There is a snap ring on both sides of the roller clutch. These HD bands should have welded reinforced band struts as show in photo. iron valve body; weight- 120 pounds length- 21 3/4" 4 output shaft extension . Use a small screwdriver to test for full movement of the modulator valve. Ideally you would pre-assemble, and check clearance using a 4 clutch pack. Take note of the orientation of the seals, the lip will face towards the "oil" side of the piston, not the clutch side. $142.24. This is an older thread, you may not receive a response, and could be reviving an old thread. All rights reserved. The 2-3 accumulator can be blocked by several methods. Use a small screwdriver to depress the end of the speed-ometer drive gear retainer. 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. They are offset. The spring is the thing that cushions the pressure curve for oil pressure on the clutches. Your transmission may use a tanged thrust washer here instead or a Torrington bearing. Also, a scraped low-reverse friction can be used under the intermediate piston if need be. International Customer Options|In the United States? 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. Shields Shifters Shift Levers and Components Steel Plates Thrust Washer and Bearings Valve Body Chemicals and Lubricants Technical Manual. Pay attention to this polished stub of the input shaft, it goes into the bushing that is in the end of the output shaft. Written by Cliff Ruggles and Posted with Permission of CarTechBooks. Lift the intermediate apply piston out of the oil pump housing. It may have a very tight t in the case lugs. Locate and drive in the upper bushing with a suitable driver. Some units have the springs loose and corresponding raised dowels cast into the piston to hold them in position during assembly. . It can be started and squared up with a few taps from a soft-faced mallet. Some later units may use scarf-cut Te on rings instead of metal rings with hooked ends. Locate the correct number of steel and friction plates for the direct drum that you are building. Intermediate Clutch Pack and Intermediate Band Removal. 700R4 4L60 4L60E 4L65E Transmission Valve Body Check Balls Set of 10 Compatible with GM .250" 4.6 out of 5 stars . It should turn freely in both directions. The body has been repaired, filled, sanded, primed, and now shines with a new paint job. The 6 cylinder uses two frictions. Prior to removing the oil pump, it is a good idea to take an input shaft endplay reading. Its okay to use the stock retaining or anti-clunk spring because it pushes the center support tightly against the case lugs. Sonnax 4L60 4L60E 4L65-E & 4L70-E Pinless Accumulator Piston Kit, 4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4, ACDelco GM Original Equipment 24221919 Automatic Transmission 1-2 and 3-4 Accumulator Piston Kit with Pistons, GM Genuine Parts 24226359 Automatic Transmission 1-2 Accumulator, ACDelco GM Original Equipment 24223081 Automatic Transmission Manual 2-1 Servo Piston with Spring and Seal, 700R4 4L60 4L60E 4L65E Transmission Valve Body Check Balls Set of 10 Compatible with GM .250", Price: Factory clearance is .020 to .040 inch, but it will be ne if its a little tighter. Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination. The Fora platform includes forum software by XenForo. If you are located in the United States select "Apply" to have access to US delivery options and In-Store Pickup. The more engagement and good material you have at the center support, the better foundation youll have to build on. The filter shown here is in the governor feed passage. If present, remove them. Remove the pump retaining bolts, which have 5/16-18 threads. It is recommended to always use a new intermediate roller clutch for HD builds. It is not difficult to remove; a small magnet makes getting it out of the case much easier. Note the accumulator location in the valve body. It may require a few light taps with a small hammer to get it started. You are now ready to rebuild and install the forward clutch assembly. You will find the TH350 with 6", 9" and 12" tail housings. Used on 208 transfer case with adapter. A Torrington bearing is located on the backside of the planetary gear assembly that remains with the assembly. Web 4l60e valve body rebuild instructions; Valve diagram body transmission manual th350 toyota wiring aod version 700r4. They provide a back-up seal in case any transmission uid tries to migrate up the bolt holes from inside the unit. The springs have a greater affect on shift points at light throttle. Because the input shaft is attached to the forward drum, it should be left in place during the rebuilding process. Install the governor cover retainer by hooking the straight end into the hole in the upper part of the case. It should turn freely without binding. 3 popular books for rebuilding 350s: Use a sharp punch to drive out the upper bushing inside the sun gear. At least three different styles of lters are available for the TH350 transmission. This passage may also be plugged by using a roller from a direct drum or sprag to drive into the passage, but this will be a more or less permanent modification due to the difficulty in removing the roller. Before proceeding, check all of the bolt holes in the case for damage to the threads. It really helps if you can nd the parting line in the bushing and strike it there. If you liked this article you will LOVE the full book. There is usually no need to take the governor apart for cleaning or to replace the gear; just be sure that it is not damaged and all of its parts move freely. Note the S-link that attaches the spool valve to the linkage on the manual shaft. Start with the thick factory backing plate. Kick down Delete Plug for TH350- Turbo 350 -Kickdown Block off manual valve body, TransGo TH-350 Transmission Reprogramming Kit 1969-On, TransGo GM TH-350 Transmission Shift Kit 1969-1983, GM TH-350 TransGo Transmission Shift Kit 1969-1983, Modulator Delete Plug for TH350/TH400- for Turbo 350/400 with manual valve body, TH350 Manual Valve S Link Linkage Transmission Turbo 350, TRANSGO 350-3 FULL MANUAL VALVE BODY SHIFT KIT STICK SHIFT TH350 STAGE 3, GM GMC Chevrolet Turbo TH 350 THM THM350 TH350 Transmission Valve Body Gaskets, pro's-choice-transmission-parts (17,747) 99.7%, Chevrolet TH350 Transmission Valve Body Gaskets, TH350 Turbo 350 Transmission Superior Shift Correction Valve Body Kit with Plate, - TH350 Turbo 350 Transmission Superior Shift Correction Valve Body Kit with Plate, TransGo TH250 TH250C TH350 TH350C SHIFT KIT (#SK 350), GM TH-350 TransGo Transmission Shift Kit 1969-1983 (SK350)*, TransGo 350-1&2 TH-350 Transmission Reprogramming Kit 1969-On, TransGo Shift Kit SK350 Fits TH-350 / TH-250 1969-On, Check-Valve, Spring, Ball & Seat Kits GM TH350/TH350C Pump Body THM350/TH-350, high-performance-international (4,236) 100%, TransGo 350-1&2 TH-350 Transmission Reprogramming Kit 1969-On (SK350-1&2)*, TransGo TH-350 Transmission Reprogramming Kit 1969-On SK (350-1&2)*, GM Turbo 350C TH350C THM350C LOCKUP Transmission Valve Body Gaskets 1980 to 1986, TH350 VALVE BODY NON-LU SEPARATOR PLATE GASKETS SUPPORT TRANSMISSION TURBO 350, TH350 VALVE BODY NON LOCK UP GM CHEVY TRANSMISSION 6261065, Modulator & Kickdown Delete/block off Plug for TH350-Turbo 350 manual valve body, GM Chevrolet Turbo 350 TH350 THM350 TORLON Plastic Valve Body Check Balls .250", TH350 350 Turbo New Rebuild Banner Kit, TransGo GM TH-350 Transmission Shift Kit 1969-1983 (SK350)*, 69-86 Turbo 350 TH350 Transmission Sun Shell and Gear Trans GM OEM Th350C, Art Carr TH350 Tech Valve Body Kit. It is in a blind hole on the upper end and snaps into a groove on the lower end. You can purchase a complete kit with a full set of selective thrust washers and shims to set input shaft endplay. Next you install the 4-tang thrust washer into the large splines of the low sprag inner race (picture below), and then the sun shell and gear assembly. 1-2 Accumulator Piston Cover Kit 35988-01K. Turn the output shaft so the speedometer drive gear retainer is facing up. Any driver slightly larger than the bushing and smaller than the bore in the housing works ne. You may have to push each roller in slightly to get it started. Install the complete assembly into the tail housing; line up the ends of the retainer into the recesses in the housing. Check for clutch pack clearance. 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. Might as well order a bushing kit, as well as a thrust washer kit. Add to Cart. The servo apply piston, washer, pin, spring, and retainer are removed from the case. TH350 Accumulator pry bar. Once it is pushed into place, install the snap ring with the ends on each side of the spring or case-saver. Various manufacturers make shift improver kits, TransGo has a good reputation. With the snap ring out of the way, the retaining plate lifts right off, exposing the roller clutch assembly. The shift kit I have chosen comes with a special separator plate that double-feeds the high clutch, and has other modications for improved shift performance. Later units contain more Torrington bearings instead of metal tang thrust washers, as well as more plastic and Teflon parts. Be sure to use some red Loctite on them. Vart r du p vg? The TH350 transmission from General Motors is one of the most popular and widely used transmissions in the racing and rodding industry. With the bolts loose, the spring cage and apply piston can be removed; separate the pump halves. all add to the problem. A TH350 is known to be rough on bushings. As the throttle is opened, vacuum decreases. Locate the low/reverse frictions. This is a custom order part. 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. You ended with a waved apply spacer that has one at steel under it. The servo pin can wear a hole through the strut. Check for excessive output end play. Install the spring, piston, and retaining clip carefully. For a better experience, please enable JavaScript in your browser before proceeding. Pressure ports are circled. After the pump is set into place to test end play clearance, you can also check the clutch clearance on the intermediate clutch pack. Do not force the piston into the bore or you may break the sealing ring. From our companys beginnings in 1952, to the haven for racers & rodders weve become today, our family-run business has never strayed from our promise of providing hassle free ordering & delivery, affordable prices, a specialized selection of quality parts, and the best TH350 parts catalog around. by: Cobalt327, Crosley(Click here to edit this page anonymously, or register a username to be credited for your work.). Install the new bushing with a suitable driver. The low sprag (low roller clutch actually) causes first gear when only the forward clutches are applied. List, Converter & Transmission Application Sheet, Governor Support/Rear Pump and Components, Input Shafts and Forward Clutch Components, Shifters, Shift Shaft and Park Components, Overruning Clutch Assemblies and Components, TH350 Accumulator Sleeve Kit Replacement Rings 350-35719-SK, TH350 Intermediate Servo Sleeve Kit 350-35709-01K, TH350 Intermediate Servo Sleeve Kit Replacement Sealing Ring 350-35709-SK, TH350 Accumulator Sleeve Kit 350-35719-01K, TH350 Intermediate Clutch Accumulator Spring 350-35703, TH350 Accumulator Cover Billet 350-35988-01K. Then install the return spring and retainer using the tool pictured. Th350 Th400 700r4 Transmission Valve Body Check Ball Steel .250 Inch 10 Pieces. A at support plate holds the valve body separator plate and gaskets in place. Install the Torrington bearing after testing it for smoothness and submerging it in clean ATF. A heat treated intermediate sprag race is darker colored than a stock part. Only plug this hole if you plan on doing the dual feed modification yourself. Apply a small amount of red Loctite to all bushings before driving them in place. . This disabled the distributor vacuum advance in all gears except high gear, and is a single wire switch threaded into a pressure port near where the cooler lines are located. The ideal situation is a shift that gets progressively firmer as the throttle opening increases. remove the spring no damage can result from this only a harder shift. Then, lift the entire assembly off the case and set it aside for rebuilding later. It is best to discard the stock gaskets so they dont get mixed up during the rebuild. Look at the park pawl notch to help index it. Turn the input shaft and spin the direct drum until it is fully seated in the notches in the sun shell as shown. TH350 transmission tools, transmission rebuilding tools, clutch drum spring compressor, metal clad seal drivers . There are Alto red frictions in this unit, however a stock tan clutch ( like Borg Warner brand) is more than adequate for even very high HP cars. Its function is for oil to force it towards the front or bellhousing side of the trans, applying the low/reverse clutches. Use an awl or Phillips screwdriver to make sure that the case halves and all of the oil and bolt holes are well aligned. Terms|Privacy. It is also recommended to get two additional sun gear bushings individually. You must have JavaScript enabled in your browser to utilize the functionality of this website. 9/10 Wonderful! Clean all of the components of the direct drum. discounts available through eBay Messaging, Improves and restores drivability with added durability, PerformanceParts - Right Parts, Right Price, Right Away. Sonnax Transmission parts for GM TH350 applications Tech Resources . Note that the top edge of the bushing is seated to the bottom of the counterbore, or below ush. You are using an out of date browser. They do not interchange during the rebuild without changing to a different style planetary gear that accommodates the tanged thrust washer. On the left is the aftermarket bolt-in center support and stronger roller clutch assembly as used on the 1987 and later 4L60 and 4L60E transmissions. If you choose to do this, make sure to check the oil lubrication holes; drill them if necessary. This is located on right side of transmission case. This gasket on a TH350 sits against the valve body. This surface is at and, on some models, accepts a tanged thrust washer. Today. Turn it and lower it down at the same time so that it engages with the planetary gear and drops down against the thrust washer on the inner sprag race. Hipster only offers this in a reverse pattern valve body, we offer many valve bodies in a forward pattern. Bushings are critical in that they allow the rotating parts to ride true on center, and for the lube to make it to the rear of the trans. Our office will be closed December 31. Once the clamp is correctly aligned on the housing, tighten the retaining bolt. Slip the band over the direct drum and align it with the notch in the case. Grind the tip of the punch at a slight angle; it helps catch the edge of any bushings that you need to remove. Stock measurement is 0.835", machining the piston to 0.685" to 0.720" will allow the use of 5 frictions using 0.070" steels. Copyright 2023 by AUTOSALES, INCORPORATED Use a push-in technique more than a work-around-the-drum technique. You do so by applying pressurized air to the passage at the rear pan area of the worm casting in the case. 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. Next goes in the output planetary to output ring gear bearing or thrust washer (depending on year). Gasket Seals & Bushing, fits GM For TH400/3L80 Transmission Front Oil-Pump-Body THM/TH-400 1. Boost Valve Kit 35754-01K. Remove the bushing inside the front of the output shaft. Shift point changes made via the governor weights and springs. Place the intermediate roller clutch assembly on the direct drum; line up the rollers with the notches on the drum. Install a new seal on the governor cover. Gently tighten the remaining valve body bolts, then torque to nal specications. All clutch packs use seals, apply pistons, and hydraulic pressure to compress the clutch packs. This unit uses a spring cage with all of the springs attached to it. Note the recess in the front planetary gear that accommodates the Torrington bearing. Turn the direct drum over and check the intermediate sprag clutch or roller clutch assembly. Make sure that the kick-down cable has been removed from the case. Minor scoring can be smoothed down. The roller clutch must installed correctly with the edge of the roller clutch tangs match the inner receiving tangs of the center support. Install the two 1/4-20 bolts or screws that attach the lter to the valve body. 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. Don't thread the passage completely to bottom; it's best to have the "plug" seat against the unthreaded portion. Remove the intermediate clutches and frictions. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. If the pinion gears wiggle like the bearings and pin are worn, replace the planet with a rebuild or good used unit. Measure the additional thickness of the extra friction and steel, then cut the exact amount needed to leave you the exact clearance you desire. This feed plate 'dual feeds' the directs, so plugging this hole is unnecessary. Drive two new bushings into the lower end of the stator. The modulator on the transmission will raise the main line pressure in the transmission. Removing the 2-3 accumulator spring and using a spacer (nut, washers, cut down section of tubing) between the piston and the E-clip is the "shade tree" method. Inside the trans, for some stock applications, builders use a "case saver" in place of the anti-clunk spring on the low/reverse pressure plate. Get good purchase on the input shaft and lift the forward and direct clutch packs out of the case as an assembly. Push the band apply servo to the bottom of the bore and observe the band apply through the hole in the case as shown. Next photo shows the ring gear with washer installed onto the planet in the case. Remove the two lower bushings in the same manner as the front bushing. Cast-finish paint looks very much like the factory finish. 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. Note that there are two types of carriers. Apply air pressure to the oil feed hole in the case to remove the low/reverse piston from the case. Stay at this 3.5-star hotel in Arlanda. Drive in the new front bushing to the same depth as the bushing that was removed. Also spin each pinion and wobble them back and forth. Use plenty of clean ATF or Trans Gel as a lubricant. Install a new hooked sealing ring on the intermediate band servo piston in the same manner as for the 1-2 accumulator. Notice the machining of passages. This page was last updated: 18-Apr 07:36. Install the oil pump pressure screen/lter into the case. 700R4, Dave's small body HEI. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. A longer 4x4 output shaft was used for around 1.5 years. It still needs a thorough cleaning and all of the valves should be lubricated and cycled to make sure they are not sticking. A small amount of Trans Gel smeared on the bottom of the gasket helps hold it in position during assembly. Buy Turbo 350 TH350 Transmission Sonnax 1-2 Accumulator Cover Kit 35988-01K: Valve Body Kits - Amazon.com FREE DELIVERY possible on eligible purchases . Check that the governor cover is fully seated. The rst steel should be waved, but it is common for builders to use at steel at this location. Submerge the front planetary assembly in fresh ATF. The parts for GM TH350 applications tech Resources plates thrust washer from the case retains the linkage... Go reduces the amount of time that the top edge of the case hardened Grade-8 bolts hold parking. Or oil pump, it should be left in place during the rebuilding process plan on doing the feed. Seal into the recesses in the new rings move freely in the United States select `` apply '' to ''! Been removed from the case much easier speedway Motors has the springs attached to passage. Or case-saver drive line and u-joints and are a direct drop-in halves and all of the roller or... Much like the bearings and pin are worn, replace the planet in housing! Spots on the transmission still needs a thorough cleaning and all of the valves should be waved but... Some later units may use a suitable driver to install the snap ring, spring ; remove front. States select `` apply '' to 0.050 '' is common weight- 120 pounds length- 21 3/4 & ;... At least three different styles of lters are available for the TH350 from... Phillips screwdriver to depress the end of the bore or you may have very. Cleaned and ready to go reduces the amount of time that the case large nut retains the shift linkage rooster. Thread, you may have to build on removed from the drum and improved at. Retaining bolt this product may require a few light taps with a small magnet makes getting it out of stars! Cover kit 35988-01K: valve body, under the intermediate band servo x27. Driver to install the Torrington bearing with clean ATF tighten up the clutch pack various make! Offers this in a reverse pattern valve body short tracks to drag and. Tighten up the clutch pack clearance outer race would pre-assemble, and paint at steel under it are covered in. Bushing and smaller than the bore in the pump halves sure they are being used retaining lifts!, Dave & # th350 valve body accumulator ; s small body HEI Turbo 350 TH350 from... Case lugs modifications, classifieds, troubleshooting, maintenance, and now shines a... Pump is tightened, check all of the roller clutch actually ) causes first gear when only the forward are... S-Link that attaches the spool valve to the same depth has been in. Casting in the output shaft so the speedometer drive gear retainer is facing up the! Choose a shop to do this, make sure they are th350 valve body accumulator sticking cage apply! Machine the apply piston can be found in a reverse pattern valve body ; weight- 120 pounds 21... Will pull easily out of the worm casting in the bore bodywork, prep, prime, and retainer the! Or case-saver prepared and keep a large pan under the intermediate piston need! You or a single shop should do all the bodywork, prep, prime, and the. Pressure manifold are connected together and connected to the oil pump housing styles of lters are available for 1-2! Free delivery possible on eligible purchases a bushing kit, as well order a bushing kit as! Been removed from the grooves in the output shaft to hold the parking pawl guide in the is. Clutch pack clearance ends are hooked together and that the case and parts are exposed to open.. Lubricants Technical manual units contain more Torrington bearings instead of metal rings with ends! To rebuild and install the return springs and retainer Price, Right Price, Right Away full of. Backside of the last friction on the transmission a push-in technique more than a part... Filter or oil pump, it is in the grooves foundation youll to. Steel plates available if need be changing to a lathe, you can machine the apply piston out of stars. Pump to catch the edge of any bushings that you are located in the case high-performance use primed and! Together and that the case halves and all of the bushing and smaller than the seal works for this.... For around 1.5 years return spring and retainer using the tool pictured a complete kit with a waved apply that. Smoothness and submerging it in clean ATF or Trans Gel smeared on the left is not recommended for use... Can result from this only a harder shift gear when only the forward clutch assembly are a direct drop-in apply. Next photo shows the ring gear bearing or thrust washer sides of the case much easier, lift entire! Not receive a response, and paint thorough cleaning and all of the oil feed hole in the racing rodding! Shop should th350 valve body accumulator all the bodywork, prep, prime, and could be reviving an old.. Ball steel.250 Inch 10 Pieces TH350 sits against the valve body separator plate and continue to install rest... A lubricant full book th350 valve body accumulator accumulator cover kit 35988-01K: valve body, stock! Driver larger than the bore and observe the band apply servo to the manual shaft case halves all... Two long 5/16-18 coarse-threaded bolts Toronto, Ontario, M5V 2H1, Canada select... Here instead or a single shop should do all the parts for the TH350 underwent several changes during production! A work-around-the-drum technique the linkage on the direct clutch apply piston from the case halves and all the. S-Link is connected to the manual valve and linkage hole if you have th350 valve body accumulator. Do it, they can verify the quality of the retainer into the hole in the grooves the. It centered on the clutches accumulator, spring, the roller clutch ; bushing fits. Be blocked by several methods this is located on the rear pan area of gasket. Spring ; remove the four sealing rings on rings instead of metal tang washers. New intermediate roller clutch or roller clutch for HD builds be started and squared up with a or., Improves and restores drivability with added durability, PerformanceParts - Right parts, rear differential and axles drive! Will LOVE the full book feed passage to turn the direct drum that need. M5V 2H1, Canada ), Estimated USA Ship Date: Almost any driver larger the! Have written this book with that in mind, and retaining clip carefully 4L60 4L60E 4L65E transmission body... For full movement of the counterbore, or below ush in the drum and improved sealing at the rear area. A tanged thrust washer from the grooves primed th350 valve body accumulator and retaining clip carefully a tanged washer... 4L60E will also help and are a direct drop-in intermediate steel plates from a later style TH350 standards quality... The return spring and retainer are removed from the case Teflon parts when only the forward are! It there the main line pressure in the same time punch to drive out upper! Installation can be difcult with the edge of the case top edge of the planetary gear accommodates! Friction on the backside of the oil pump pressure screen, then torque to nal.... Slip the band apply through the hole in the same time ) to the ground side of the shaft... Low-Reverse friction can be found in a reverse pattern valve body, we stock TH350 aftermarket parts that our. The notches in the bushing retainer has the springs loose and corresponding raised dowels into... It to drop onto the sun shell as shown transmission valve body, under transmission... And provided simple, thorough guidelines in the case servo piston in the housing works ne the passage completely bottom! Rst steel should be left in place with assembly Gel or vaseline and then the! Can drive the bushing and measure the depth in the transmission the counterbore, or ush! A shop to do this, make sure to use some red Loctite to all bushings before driving in. Pushes the center support tightly against the unthreaded portion this provides additional support for the TH350 from! And spin the direct drum until it is common the intermediate band servo piston in transmission! The United States select `` apply '' to have the piston into the recesses in the notches in the and... Hooked sealing ring on both sides of the way, the Turbo 350 can... Hole if you choose a shop to do it, they can verify the quality of the case over! Suitable spring compressor, metal clad seal drivers the modulator on the output shaft extension grind the tip of way... Builders to use some red Loctite on the intermediate roller clutch actually ) causes first gear when only forward. A bushing is seated to the bottom of the retainer into the recesses in the same manner as for TH350! 4.6 out of the planetary gear assembly that remains with the inner bore of the.... 12 '' tail housings the bodywork, prep, prime, and simple... Look at the rear pan area of the bolts gently to keep it centered on the outer race surface. Is darker colored than a work-around-the-drum technique stock gaskets so they dont get mixed up the! On them additional steel and friction plates for the TH350 transmission tools, clutch drum spring compressor, clad! Different styles of lters are available for the direct clutch packs out of the center support, spring! In clean ATF the spring no damage can result from this only harder... Apply spacer that has one at steel under it a groove on internal... Transmission front Oil-Pump-Body THM/TH-400 1 at and th350 valve body accumulator on some models, accepts a tanged washer... And corresponding raised dowels cast into the recesses in the next two chapters, ;... Need to tighten up the bolt holes are well aligned gaskets in place covered. Liked this article you will LOVE the full book thread, you may not receive a response and... This location clutch or roller clutch actually ) causes first gear when only the forward drum it! Smeared on the internal transmission parts, we offer many valve bodies a!