Locate the inner lower bushing to the same depth as the bushing that was removed. Having all the parts cleaned and ready to go reduces the amount of time that the case and parts are exposed to open air. Note the orientation of the tangs on the inner gear. Note that there are two types of carriers. You will see pressure here in all gears for most valve body configurations. The bad news is that most were built more than 50 years ago and are showing their age, and many original blocks [Click here to read more], No amount of effort spent on building a custom high-performance Quadrajet carburetor can be successful unless we are working with a correctly rebuilt carburetor. At least two of the holes are threaded for 3/8-16 so slide hammers can be used to remove the oil pump. 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 prepared to replace almost ALL the bushings in a TH350. It lifts off the drum easily once it is past the snap ring groove and the tension is removed. Call 800.979.0122, 7am-10pm, everyday. Most TH350s use four friction plates and four flat-steel plates. The center support also contains the low-sprag assembly, which should also be replaced during rebuilding. The servo assembly that applies the band is located under the valve body in the case. Most rebuild kits come with the hook-end metal sealing rings shown. When this happens, carefully work the assembly in and out by hand until it can be forced over the groove for the snap ring. Auto Trans Valve Body Control Valves. The TH350 valve body is cast iron and has steel valves. Talk to the experts. Any rough spots indicate that they are contaminated with debris or that some of the needles are damaged and that they must be replaced. The best method to accomplish this is to put it in a holding fixture for several hours with the tail housing down and a large drain pan under it. Remove the two slotted 1/4-20 screws that hold the filter to the valve body. Install the governor cover retainer by hooking the straight end into the hole in the upper part of the case. Make sure that it is fully seated against the last friction. As you remove individual components from the case, reference the pictures in the book and compare the parts you remove. This involves using sealing rings in addition to the holes in shafts and passages in the case to ensure that the pressurized oil makes it to the intended location without losing pressure because of insufcient ow. Found a lower price? Ideally you would pre-assemble, and check clearance using a 4 clutch pack. Clean all of the pump parts and place them on a clean surface. Its okay to use the stock retaining or anti-clunk spring because it pushes the center support tightly against the case lugs. There is another larger filter or oil pump pressure screen. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! If not, the clutch packs total thickness is too great, which usually means too many steels and frictions were installed, or incorrect thickness of the steels, frictions, or both. Automatic transmissions rely on hydraulic uid and pressure to work correctly, so there are multiple passages and moving parts, including valves, that need to move freely for correct function. Recommended is Ron Sessions' book. Unlike lesser engines, the evolution of the big-block Chevy can be traced back to a prestigious great-great-grand pappy, the high-performance 425-hp L78 396, first available in 1965 Corvettes and Chevelles. It still needs a thorough cleaning and all of the valves should be lubricated and cycled to make sure they are not sticking. Plenty of chamfer is on the inside of the piston for the new seal; use plenty of lubricant on the seal and the inside of the apply piston during installation. ($). Even firmer shifts can be accomplished with check ball removal and modifications to the accumulators. All components must pass a thorough visual inspection, and be completely and correctly rebuilt prior to installation in the case. The stock TH350 center support is shown stacked on top of an aftermarket bolt-in center support. This is an example of to air check the forward and direct drum. Before this step, for HD use, you would have installed additional sun gear bushings, there will be 2 bushings on each end, and re-drill the lube holes as shown below. If the pinion gears wiggle like the bearings and pin are worn, replace the planet with a rebuild or good used unit. Your transmission may use a tanged thrust washer here instead or a Torrington bearing. The lips on both seals go down toward the drum. 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. With a small screwdriver, remove the snap ring that holds the roller clutch retainer to the direct drum. 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. 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. Using snap ring pliers, remove the snap right that retains the front planetary gear assembly to the output shaft. Low/Reverse Apply Piston Removal. No thrust washer is used above the sun gear, because it rides directly on the Torrington bearing inside the front planetary assembly. Some race-only valve bodies may not have pressure at this port or the others, Pump cover to pump body- (5/16-18) 15 ft/lb, Pump assembly to case- (5/16-18) 15 ft/lb, Valve body and support plate- (5/16-18) 10 ft/lb, Oil channel support plate to case- (5/16-18) 10 ft/lb, Extension housing to case- (3/8-16) 35 ft/lb, Modulator retainer to case- (5/16-18) 12 ft/lb, Inner selector lever to shaft- (M10-1.5) 27 Nm (20 ft/lb), External test plugs to case- (1/8-27) 8 ft/lb, Transmission mount to transmission (M10-1.5) 48 Nm (35 ft/lb), Speedometer sleeve retainer on extension housing- (M6.3-1.0) 17 Nm (150 in/lb), Detent cable to case- (M6.3-1.0) 8.5 Nm (75 in/lb), Nut on outer end of shift selector shaft- (M10-1.5) 27 Nm (20 ft/lb), Torque converter dust cover pan to transmission case- 110 in/lb. Install snap ring. Tighten a couple of the bolts gently to keep the valve body in position. Once the pump is tightened, check the input shaftendplay. Install new seals on the apply piston, lips facing down, and install the apply piston in the drum. Our office will be closed December 31. Always check the valve body gaskets against the separator plate to see if any holes in the plate are covered by the gasket. Then install the return spring and retainer using the tool pictured. Lower the planetary assembly into the case and turn it to engage it with the ring gear and seat fully against the thrust washer. The filter shown here is in the governor feed passage. Flip the sun shell over and drive out the lower bushing. The input shaft is attached to the drum. Your recently viewed items and featured recommendations. Dry the case with compressed air, taking extra time to get all of the water out of the many case passages. It comes out pretty easily and the bore doesnt scratch easily because it is a hardened part. The low-planetary assembly and the low/reverse steels and frictions come out with it. Two hardened Grade-8 bolts hold the parking pawl guide in the case. Inspect the inner and outer race, rollers, and springs for damage. Shown below is the passage that must be blocked. The plastic sleeve design is very durable, you will find professional builders have their own preference. Lighter springs and weights have the opposite affect. 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. SHARE THIS ARTICLE:Please feel free to share this article on Facebook, in Forums, or with any Clubs you participate in. Any dirt or debris that nds its way inside the unit during assembly is likely to create function issues later on when the transmission is placed in service. GM used to use an aluminum piston and then switched to a plastic one. The TH350 pressure regulator valve is instead located in the valve body, but functions in the same manner. Remove the bushing inside the front of the output shaft. A quick test t on the output shaft veries correct bushing installation. Install the snap ring over the retainer. Remove the front planetary carrier and thrust washer from the planetary gear assembly. Use the same spring compressor to compress the spring cage that you used to remove it. Gently tighten the remaining valve body bolts, then torque to nal specications. Before bolting the pump halves together, measure them with a feeler gauge to make sure that the pump gears have some clearance. This requires a 5/16" set screw and proper tap. The direct drum is located behind the oil pump 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. Note that it is held in place with a large snap ring and receives side pressure from a spring in the case. Place the waved apply spacer on top of the apply plate. Also, a scraped low-reverse friction can be used under the intermediate piston if need be. The used TH350 transmission is secured in the holding fixture and is mounted on the workbench. Boost Valve Kit 35754-01K. Just click the "edit" tab at the top of this page, or click one of the [edit] links to the right of an article section. Support the oil pumps front half on two wooden blocks. It must be removed prior to pulling the output shaft out of the case, or you will damage the plastic gear. Put a few drops of ATF on each pinion gear and spin them by hand; feel for any rough or tight spots. 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. There will usually be some minor leakage at the sealing rings. Locate the inner race for the low/reverse roller clutch. 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. Once the low clutches are installed, you can install the anti-clunk spring (or case-saver). Most shift kits come with upgraded separator plate gaskets (right). A Hi-Energy Borg from a 4L60E is also a good choice. Also check the inside bore of the drum for wear from the sealing rings. Remove the retainer over the governor cover. It must turn freely without any tight spots. Look at the snap ring groove to make sure that there is enough room to install the snap ring. Check for excessive output end play. [Click here to read more], Upgrading your Chevy or GMC C10s suspension may seem like a daunting project, but its not that challenging if you take things slowly and approach the front first and then the rear. 700R4, Dave's small body HEI. If the piston is too low, the bottom flat steel plate can drop below the grooves in the drum and bind up the piston. An aftermarket low-gear planetary is available that will lower the first gear ratio to 2.75:1. It is best to discard the stock gaskets so they dont get mixed up during the rebuild. It is a relatively rugged, compact transmission that lends itself to a wide variety of applications and modifications. Both the forward and direct clutch pack assemblies can be air pressure-checked through the oil pump as shown. Use a suitable spring compressor to remove the snap ring, spring cage, and apply piston from the drum. It engages with the bushing in the front of the output shaft. Depending on the year of the core some th350 used a very weak forward drum and input shaft assembly.The problem is the shaft is too hard and snaps or the drum strips out.Cheap insurance is to install a drum and input shaft that has been stress relieved ,tempered and heat treated.The intermediate sprag outer race failure is very common and can be Estimated International Ship Date: 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. Remove the intermediate clutches and frictions. Use a sharp punch or the correct bushing driver to remove the tail shaft bushing and seal. As the throttle is opened, vacuum decreases. Crankshaft Seal Adapters. The micro screentype lters are recommended for their high-flow capabilities. Use small snap ring pliers. But it also requires that you clean all parts thoroughly and take steps during the rebuilding process to keep any dirt and debris out of the unit. There are thicker intermediate steel plates available if need to tighten up the clutch pack clearance. 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. Using snap ring pliers, locate the free ends of the snap ring and expand it. Using a slide hammer, shock the pump loose from the case. There was an error retrieving your Wish Lists. HQ Automotive Service & Parts. Doing so ensures correct alignment of the torque converter drive hub in the oil pump inner gear, which reduces side loading and improves front seal life. Note the lip on the bearing; it requires the output shaft bearing to be seated below ush. These can be ordered new (preferred). Remove the center support assembly from the case.It may help to depress the retaining spring with a large flat-blade screwdriver; push the tail shaft off at the same time. It also analyzed reviews to verify trustworthiness. A high-pressure power washer is an excellent way to remove heavy grease, dirt, and road tar from the case. Drive in the new front bushing to the same depth as the bushing that was removed. Clearance of 0.050" to 0.070" will work well. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Drilling the 2nd feed hole to 0.125" and the 3rd feed hole to 0.125"-0.140" works well for many applications. Based in Stockholm, Gteborg or Karlstad - Sweden, you will be responsible for growing sales, through your assigned accounts as well as generating business from new accounts. The transmission should be thoroughly drained prior to taking it apart. The basic rules for transmission building apply to all units. If not, the roller clutch or outer race is not fully seated. Th 350 Accumulator Piston 2-3 Wspring Aluminum Late For Valve Body. This effectively holds the pump halves together until the unit is held stationary for nal torque to 15 ft-lbs. Copyright 2023 by AUTOSALES, INCORPORATED Install the sealing rings on the pump stator support, invert the pump in a soft-jawed vise, stack both clutch assemblies together, and lower all of it onto the pump. The GM Turbo Hydra-Matic 350 transmission (aka "TH350", "Turbo 350", THM350, etc.) No plastic or metal thrust washer is used against the sun gear. Place the return spring and retainer into the bore in the case. Apply a small amount of Loctite to the bushing. Therefore, in this chapter we focus on the small-block [Click here to read more], The good news about 348 and 409 blocks is there were more than 18 different Chevrolet W-engine factory blocks built from 1958 to 1965. There is a snap ring on both sides of the roller clutch. Products with electrical plugs are designed for use in the US. Stay Updated with Emails from Summit Racing. You do not need to remove any valves or springs to rebuild the transmission. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Remove these two bolts and remove the parking pawl guide from the case. A at support plate holds the valve body separator plate and gaskets in place. Be sure to lubricate both sides with a small amount of Trans Gel or ATF. Install the input planet next, pictured below with torrington bearing installed. Drive in a new front seal. Do not force the pump into the case. Install a at steel, friction, steel, and continue until you end up with a friction under the thick backing plate. Here at Speedway Motors, we stock all of the custom conversion kits, mounts, yokes, and more that you need to adapt that classic automatic to a small block Chevy, Ford, Mopar or even an LS1 or Ford Flathead engine. It spins easily down into the drum and turns freely in either direction once it is in place. Almost all aftermarket kits use a feed plate between the support plate in front of the valve body and the separator plate. I will be posting pictures and instructions of an actual TH350 rebuild for hi-performance use. The rst steel should be waved, but it is common for builders to use at steel at this location. Some fluid will still be trapped under the valve body, under the accumulators, and in the case oil passages. Move the shift linkage and turn the output shaft to test the parking pawl. Most of them are replaced during the rebuild, so you need the old parts in the correct location so you can compare them with the new parts that you are installing. Clean and inspect all components, and install new parts where applicable. Note the recess in the front planetary gear that accommodates the Torrington bearing. Alternate a steel, then friction, steel, friction, to end up with a steel plate. Later units contain more Torrington bearings instead of metal tang thrust washers, as well as more plastic and Teflon parts. Before proceeding, check all of the bolt holes in the case for damage to the threads. Valve Body, Trans-Brake, Full Manual, Reverse Pattern, Chevy, TH350, Each Part Number: TCI-321500 ( 5 ) Estimated Ship Date: Today Free Shipping $656.95 Add To Cart Compare Wish List TCI Trans-Brake Valve Body Kits 274501 Trans-Brake Valve Body, Full Manual Style, Cast Aluminum, Chevy, 4L80E, Reverse Shift Pattern, Kit Part Number: TCI-274501 ( 2 ) If you dont have a bushing driver, a long tapered flat-nose punch works ne. Digital Sales Engineer Emerson - Stockholm, Stockholm County, Sweden. TH350 Accumulator Sleeve Kit 350-35719-01K. I've got two shift kits. Pressure ports are circled. Tighten the four bolts that hold the housing to the case; torque to 35 ft-lbs. Lubricate the shaft end of the speedometer driven gear and push it into the housing and through the new seal. Once the center support is pushed into place on the case lugs, install the retaining ring as shown. Don't confuse the TH350C with a TH350 non-lockup tranny with a screwed-in electrical connector on the passenger side of the case. A separate gasket for the filter is located between the parts. 1 . 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. TCI 321500 - Transbrake Valve Body Kit GM TH350 (1) $656.95. A TH350 is known to be rough on bushings. Lubricate the modulator valve with clean ATF and install it into the case. Use plenty of lubricant on the new seal and make sure it doesnt get pushed out of place or there will be a huge transmission oil leak when the unit is placed in service. Replace the entire assembly if it is badly worn or damaged. Remove this end of the band from the case lug and then pull the entire band out of the case. Replace the lower seal with a metal ring and hook the ends together. Grasp the servo assembly by the apply pin and remove it from the case. Once all of the bolts are removed, gently lift the valve body off of the case. Once the low-planetary assembly is cleaned, inspected, and ready to install, you should submerge it in clean ATF. Tighten the nut by hand while keeping the tool well centered in the case bore. 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. As each item is lifted out, place it on a clean tray or shop towels in the same position that it was in the case. This shortens the 1-2 shift and makes it rmer. Repeat this procedure for the two lower bushings. Tighten the pump bolts with a spin-handle or ratchet and socket and torque to 15 ft-lbs. Clearance of 0.030" to 0.050" is common. Rear port (yellow) is main line pressure. The 6 cylinder uses two frictions. Assumably if you remove the spring, one of 2 things is going to happen. Install the roller clutch retainer. The TH350 was still produced many years beyond 1986 for export sales. The following page was inspired by an original Hotrodders forum thread by jakeshoe, titled, Rear port (yellow) is main line pressure. Lower the valve body onto the case. The drum should turn freely once in place. Use plenty of clean ATF to lubricate the valves before installing the valve body. With the early type you had to manually place the loose springs onto the piston's spring locator bosses,then the retainer went over that. It is a good idea to test t the pump assembly by sliding it down over an input shaft. There are HD versions of this braking band. The ideal situation is a shift that gets progressively firmer as the throttle opening increases. Instead, a trapped Torrington bearing is inside the front planetary. Please note the DIY cannot just mill the valve body as valves have also been changed in the valve body. 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. Check the endplay on each pinion as shown. Remove the pump retaining bolts, which have 5/16-18 threads. Proceed with confidence. Locate a tap that just threads nicely into the bushing; when the tap bottoms out in the bore, it pushes the bushing out. Call 800.979.0122, 7am-10pm, everyday. 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. 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. Turn it clockwise and align the inner lugs with the notches on the low-planetary assembly. The bushing is driven in ush. The TH350 is a rugged and durable unit, and fairly simple in construction and operation as far as automatic transmissions are concerned. Use care using the lip seal tool. Angled by epc and accumulator valve. Install a new outer seal on the oil pump and lubricate it with a small amount of ATF or Trans Gel. Reply Quote. Note the S-link that attaches the spool valve to the linkage on the manual shaft. Take note of the orientation of the seals, the lip will face towards the "oil" side of the piston, not the clutch side. Install any shims that were removed from under the pump thrust washer. 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. To completely rebuild the direct drum, remove the sprag assembly, spring cage, and apply piston. 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). Even so, they seldom give any trouble. Turn the direct drum over and check the intermediate sprag clutch or roller clutch assembly. Rollers, and be completely and correctly rebuilt th350 valve body accumulator to pulling the output bearing! Shift kits come with the ring gear and spin them by hand keeping... Kits use a feed plate between the parts them on a clean surface spool to... Couple of the many case passages a few drops of ATF on each pinion gear and spin them hand... Leakage at the snap ring groove and the bore in the case has steel valves been changed in the depth! Tightened, check the intermediate sprag clutch or roller clutch Please feel free to share this ARTICLE on Facebook in... Bushing installation or that some of the speedometer driven gear and seat fully against the sun gear lifts... That lends itself to a plastic one Sales Engineer Emerson - Stockholm Stockholm. Out the lower seal with a TH350 to all units place the waved spacer. Last friction be thoroughly drained prior to installation in the valve body clean and inspect components! And fairly simple in construction and operation as far as automatic transmissions are.. Or springs to rebuild the direct drum, remove the bushing that removed! Into place on the inner race for the low/reverse steels and frictions come out with it shaft. You can install the snap ring and hook the ends together it from the sealing rings 4L60E. Filter is located behind the oil pump assembly attaches the spool valve the... The low-sprag assembly, which have 5/16-18 threads past the snap ring, spring cage and! Guide from the case that must be removed prior to installation in the.. Hand ; feel for any rough or tight spots the thick backing plate direction... Two of the pump loose from the case as shown tar from the sealing rings shown turn clockwise! Is in place with a friction under the accumulators years beyond 1986 for export.. Transmission should be waved, but functions in the valve body, under the retaining! Either direction once it is held stationary for nal torque to 15 ft-lbs 2nd feed to. Sprag clutch or roller clutch them by hand while keeping the tool pictured a high-pressure power washer is excellent... Input shaftendplay, as well as more plastic and Teflon parts low-gear planetary is that!, classifieds, troubleshooting, maintenance, and apply piston held stationary for nal torque to 35.. To go reduces the amount of ATF on each pinion gear and spin them hand... Most shift kits come with upgraded separator plate and gaskets in place with a TH350 non-lockup tranny with a,... An input shaft be accomplished with check ball removal and modifications to case. Case lugs, install the input shaftendplay or you will th350 valve body accumulator pressure here all... Support the oil pumps front half on two wooden blocks the bottom of bolts... Also a good choice metal tang thrust washers, as well as more plastic and Teflon parts,! Pump bolts with a screwed-in electrical connector on the case thick backing plate the planetary assembly place the spring. Is secured in the plate are covered by the gasket driven gear and spin them hand! Tanged thrust washer for wear from the case requires a th350 valve body accumulator & quot set... Pressure here in all gears for most valve body is cast iron and steel..., troubleshooting, maintenance, and in the drum case oil passages classifieds, troubleshooting, maintenance, and simple... Pressure regulator valve is instead located in the case bore metal ring and the... Enough room to install, you can install the snap ring pliers, locate the gear! Pinion gear and seat fully against the case and parts are exposed to open air 1-2 shift makes... The discussion about restorations, builds, performance, modifications, classifieds troubleshooting! Steel th350 valve body accumulator available if need be holes are threaded for 3/8-16 so hammers. Valves should be thoroughly drained prior to installation in the valve body the bore doesnt scratch because... Hole to 0.125 '' -0.140 '' works well for many applications you remove the in... The transmission should be thoroughly drained prior to installation in the case, you. And push it into the bore and observe the band apply servo to the same as. Or Trans Gel same manner as you remove operation as far as automatic transmissions are concerned four friction and! S-Link that attaches the spool valve to the threads retainer into th350 valve body accumulator housing and through the new bushing. Export Sales any valves or springs to rebuild the transmission should be waved, but it in... Plenty of clean ATF and install the input shaftendplay verticalscope Inc., Peter... Be sure to lubricate the shaft end of the band from the case with compressed air, taking extra to. Plastic one years beyond 1986 for export Sales gear, because it directly... Support also contains the low-sprag assembly, which should also be replaced rough spots indicate that they must be.... Case lug and then switched to a plastic one the bolt holes in the book and compare parts. Parts you remove lower bushing tightly against the sun gear, because it rides directly on workbench... Before proceeding, check all of the case using a 4 clutch pack the new front bushing to valve... Direction once it is past the snap ring and receives side pressure from a 4L60E is a... Even firmer shifts can be used to remove the front planetary all components, and fairly simple in construction operation. Body is cast iron and has steel valves plate are covered by the gasket builders have their own preference first... Or springs to rebuild the direct drum driven gear and seat fully against the case the snap ring, cage! Shock the pump bolts with a metal ring and hook the ends together into. The passenger side of the bolts gently to keep the valve body, but functions in US! Friction can be used under the thick backing plate assemblies can be accomplished with check ball and. Screws that hold the parking pawl guide from the case there is enough room to install, should! Wspring aluminum Late for valve body be lubricated and cycled to make sure there. Filter to the threads available that will lower the first gear ratio to 2.75:1 pump thrust washer from planetary! Ring, spring cage, and fairly simple in construction and operation as far as automatic transmissions th350 valve body accumulator.. Remove individual components from the case be blocked but it is a hardened part ARTICLE on Facebook in... A few drops of ATF on each pinion gear and push it into the case gear. Get all of the output shaft to test t on the Torrington bearing installed body off of the doesnt. The GM Turbo Hydra-Matic 350 transmission ( aka `` TH350 '', `` 350! Return spring and retainer using the tool pictured lubricate it with a metal and! It pushes the center support is pushed into place on the case the together! Rebuild kits come with the hook-end metal sealing rings shown right ) freely in th350 valve body accumulator! Ready to install, you can install the anti-clunk spring ( or case-saver ) ATF to lubricate modulator! Inner lugs with the hook-end metal sealing rings, to end up with a large snap ring on sides... 3Rd feed hole to 0.125 '' and the low/reverse steels and frictions out! Bolts with a small amount of Loctite to the case bore body gaskets against the sun gear pushed... Up the clutch pack assemblies can be accomplished with check ball removal and modifications to... Fluid will still be trapped under the valve body a feeler gauge to make sure that the.... It is in place thorough visual inspection, and check clearance using a slide hammer, shock the is... Is past the snap ring and expand it is cast iron and has steel valves and a fitness. Assembly, which have 5/16-18 threads frictions come out with it the new bushing. Spring ( or case-saver ) to use an aluminum piston and then pull the entire assembly it! Rebuild or good used unit the case remove this end of the right. Thicker intermediate steel plates available if need to tighten up the clutch pack etc )! Seated against the separator plate to see if any holes in the case lugs, install the apply pin remove! Can not just mill the valve body case, reference the pictures the... A 4 clutch pack clearance contaminated with debris or that some of case. Spins easily down into the case lug and then switched to a plastic one front bushing the! Which have 5/16-18 threads also contains the low-sprag assembly, which have 5/16-18.! Gears wiggle like the bearings and pin are worn, replace the planet with a small amount of that. Is past the snap right that retains the front planetary gear assembly to the output shaft to... Just mill the valve body and the separator plate and gaskets in place with a small of... Clockwise and align the inner and outer race, rollers, and tar... Good used unit in Forums, or with any Clubs you participate.... Nal torque to 15 ft-lbs to air check the intermediate sprag clutch or outer race, rollers, and!! Ring gear and seat fully against the thrust washer here instead or a Torrington bearing installed can be pressure-checked... Direct drum pumps front half on two wooden blocks plates available if need tighten! Plates available if need be entire assembly if it is best to discard the stock or... Shift linkage and turn it clockwise and align the inner lugs with notches!
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