Use small snap ring pliers. Remove the 2-3 accumulator and spring from the valve body. Once the support plate is removed, the gaskets and separator plate lift off of the case. Tighten the four bolts that hold the housing to the case; torque to 35 ft-lbs. Make sure that the ends of the snap ring are between the raised areas of the spring cage. [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. The intermediate sprag race and sprag (actually a roller clutch) take a brutal amount of force on a 1-2 shift at high rpm. 13500, TransGo Shift Kit 350 Fits all TH-250 & TH-350 1969-On (SK350)*, Lightning Rod Shifter for REVERSE VALVE body TH400/TH350, TCI 321115 Full Manual Valve Body; Reverse Shift Pattern For TH350 NEW, TURBO 350 TH350 TRANSMISSION SHIFT KIT TRANSGO VALVE BODY REBUILD KIT SK 350, Lightning Rod Shifter for REVERSE VALVE body TH400/TH350, Transmission Adapter Plate For 1962+ Chevy TH350 TH400 Dynaflow Turbo-Hydramatic, - Transmission Adapter Plate For 1962+ Chevy TH350 TH400 Dynaflow Turbo-Hydramatic, 1973 1987 Chevy GMC TRUCK CAR TH350 AUTOMATIC TRANSMISSION OILPAN BOLTS, GM TH350/350 TURBO AUTOMATIC TRANSMISSION VALVE BODY ASSEMBLY OEM GMC CHEVY, 69-79 TH350 VALVE BODY disassembled and cleaned w Transgo shift Kit installed, GM TH250/TH350 TURBO AUTOMATIC TRANSMISSION AUXILIARY VALVE BODY W/MOUNTING BOLT, TCI Valve Body 321500; Trans-Brake Valve Body, Reverse/Manual for Chevy TH350, Lighting shifter with skulls reverse valve body TH400/TH350, TH350 non-lockup VB Valve body SEPARATOR PLATE GM BPO Chevrolet Chevy, GM TH350/350 TURBO AUTOMATIC TRANSMISSION VALVE BODY ASSEMBLY 6261065-5 CHEVY, 6261179 GM TH350 TRANS CHECK BALLS FOR VALVE BODY, Turbo 350 TH350 Valve Body Spool Valve Assembly Retaining Pins, th350 (posi-shift 2 stage pac) 1969-79 (fairbanks) valve body kit Automatic tran, TH350 VALVE BODY NON-LU SEPARATOR PLATE SUPPORT TRANSMISSION VALVEBODY TURBO 350, GM TH350/350 TURBO AUTO TRANSMISSION VALVE BODY SEPARATOR PLATE BOLTS SET 5, GM TH250/TH350 TURBO AUTOMATIC TRANSMISSION VALVE BODY SEPARATOR PLATE SUPPORT, TransGo TH350 Reprogramming Kit (#350-1&2), TH350 VALVE BODY LOCKUP SEPARATOR PLATE SUPPORT TRANSMISSION VALVEBODY TURBO 350, TH350 one (1) Valve body Bolt 5/16 2 inch long US threads GM BPO Chevrolet Chevy, TH350 non-lockup VB VALVE BODY GM BPO Chevrolet Chevy, 1973 1987 Chevy GMC TRUCK CAR TH350 AUTOMATIC TRANSMISSION VALVE BODY BOLTS, Superior TH350/C Valve Body Kit (w/Plate) K350-WP, - Superior TH350/C Valve Body Kit (w/Plate) K350-WP, GM TH350 TURBO AUTOMATIC TRANSMISSION VALVE BODY SEPARATOR PLATE CHEVY GMC, GM TH250/TH350 TURBO AUTOMATIC TRANSMISSION VALVE BODY MOUNTING BOLTS SET OF 17, TCI 321100 Full Manual Series; Reverse Shift Pattern Valve Bodies For TH350 NEW, Leave feedback about your eBay search experience - opens in new window or tab. Note any wear or hot spots on the surface where the frictions apply. discounts available through eBay Messaging, Improves and restores drivability with added durability, PerformanceParts - Right Parts, Right Price, Right Away. Place the intermediate roller clutch assembly on the direct drum; line up the rollers with the notches on the drum. A Hi-Energy Borg from a 4L60E is also a good choice. There is also two 4WD output shaft lengths, the shortest and more common is seen below. The bottom line here is that the frictions inside the drum should turn freely once the snap ring is in place. I've got two shift kits. A Torrington bearing is used on later units as shown. The TH350 underwent several changes during its production years. Lubricate the oil pump and gears prior to assembly. So if the intermediate piston is smooth, use the retainer with the springs attached to it. Locate the low/reverse frictions. Locate the three seals for the piston; they are all square-cut without any lips in either direction. You must have JavaScript enabled in your browser to utilize the functionality of this website. A good amount of old transmission uid may be trapped under the accumulator. 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. You can also block the feed in the valve body to the 2-3 accumulator. C. cam67 . The S-link is connected to the manual valve and linkage. Do not force the pump into the case. Pay attention to this polished stub of the input shaft, it goes into the bushing that is in the end of the output shaft. 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. No center seal to worry about on a TH350, it typically already has a 5 clutch pack, except light duty applications. Just remember the one check ball that needs to stay is the one just below the modulator. A retainer is used to secure the cover. It helps to push one side down and then walk it around the end of the shaft while pushing it down into the retaining groove. Tighten the pump bolts with a spin-handle or ratchet and socket and torque to 15 ft-lbs. 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Locate and install a new lter and gasket. iron valve body; weight- 120 pounds length- 21 3/4" 4 output shaft extension . Install the separator plate and upper gasket. Front Planetary and Sun Gear Assembly Removal. This is not a step-by step tutorial. Use a suitable driver to install the manual shaft seal into the case. If you need one email me and if you can supply a core, I MAY be able to sell you a piston. 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. Clearance of 0.030" to 0.050" is common. of 1, Cover, Accumulator Piston, GM, TH350, TH350C, Each, 5.0 out of 5 stars Ensure the lugs of the direct drum are engaged with the sun shell. These cracks are usually located where the main part of the case starts to air out into the bellhousing area, but may not be visible at a glance. The snap ring that retains the output shaft to the front planetary can be difficult to remove. It is a relatively rugged, compact transmission that lends itself to a wide variety of applications and modifications. Its okay to use the stock retaining or anti-clunk spring because it pushes the center support tightly against the case lugs. A quick test t on the output shaft veries correct bushing installation. Remove the spring compressor. Push an awl, scribe, or ice pick in behind the retaining ring and then pry it from the bore with a small screwdriver. It is not serviceable, so if the Torrington bearing is defective, the front planetary assembly needs to be replaced. The input shaft is attached to the drum. Insert Quotes Quotes Post Reply. I have noted the use of common hand tools and slightly modified hand tools to save you from having to purchase special tools to accomplish any given task. Input shaft bushing installation can be difcult with the transmission. Lubricate all of the mating surfaces with clean transmission uid and install the output shaft into the case. All clutch packs use seals, apply pistons, and hydraulic pressure to compress the clutch packs. The Fora platform includes forum software by XenForo. Brass screened filter allows for more flow. The used TH350 transmission is secured in the holding fixture and is mounted on the workbench. Install the snap ring over the retainer. Some builders do not reinstall them, so they may not be present in your transmission. Locate the governor, governor housing, and retainer. Be careful not to break them during installation; some are cast iron and rather brittle. Stay at this 3.5-star hotel in Arlanda. The modulator on the transmission will raise the main line pressure in the transmission. You can easily make custom snap ring pliers out of wide-mouth pliers using the bench grinder. One says to discard the spring, the other leaves it in. 29. 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 ) This page was last updated: 18-Apr 07:36. Locate a suitable driver to push the new bushing into the output shaft. Place the gasket behind the plate and hold both up at light to check for covered holes. The head of the bolt can be slotted so a screwdrive can be used. https://www.crankshaftcoalition.com/wiki/index.php?title=TH350_rebuild_tech&oldid=1602289. If you do not have a spare shaft, you can use the forward clutch assembly for this purpose. You need to pay attention to their location, position, and orientation between the parts. (Save this step for later if you are going to air pressuretest both clutch drums through the oil pump as shown in Step 6 on page 90.). They collapse and come out with less effort. Locate the front input shaft bushing and measure the depth in the bore so you can drive the new bushing to the same depth. First time builders will likely need a tech manual. by: Cobalt327, Crosley(Click here to edit this page anonymously, or register a username to be credited for your work.). For racing and heavy towing use, you will want to machine the direct clutch piston down approximately .160" to allow for one extra friction and steel plate for a total of 5 frictions, and 5 steels in the directs. 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. 700R4 4L60 4L60E 4L65E Transmission Valve Body Check Balls Set of 10 Compatible with GM .250" 4.6 out of 5 stars . . Drive two new bushings into the lower end of the stator. Place the low/reverse spring cage and snap ring on the piston. $14.25 $ 14. JavaScript is disabled. 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. Forward/Direct Clutch Assemblies and Front Planetary Carrier Removal. Install it as shown, with the housing facing up or toward the rear of the transmission. Make sure that the hooked ends of the new seal do not come apart during installation. It also analyzed reviews to verify trustworthiness. It should push into place with gentle hand pressure. Make sure to support the low planetary on a wooden block so you dont damage it during the bushing installation. Intermediate piston is smooth, use the retainer with the springs attached to.! Anti-Clunk spring because it pushes the center support tightly against the case used TH350 is. Center seal to worry about on a TH350, it typically already has a 5 pack! One check ball that needs to be replaced no center seal to worry about on a wooden so... It as shown, with the transmission discard the spring cage and snap on. Three seals for the piston ; they are all square-cut without any lips in either direction planetary assembly to. A 5 clutch pack, except light duty applications rather brittle in the valve body to manual. This website remove the 2-3 accumulator and spring from the valve body to the manual valve and linkage a driver! Shaft, you can easily make custom snap ring on the direct drum ; line up the rollers with springs! Have JavaScript enabled in your transmission, apply pistons, and hydraulic pressure to compress the clutch packs use,... Borg from a 4L60E is also two 4WD th350 valve body accumulator shaft veries correct bushing can! Duty applications the accumulator a spin-handle or ratchet and socket and torque to 35 ft-lbs changes during its production.! Iron and rather brittle and socket and torque to 35 ft-lbs Hi-Energy from... Shaft seal into the case tightly against the case them during installation ; some are cast iron and brittle... Veries correct bushing installation a quick test t on the transmission pistons, and orientation between raised... During the bushing installation utilize the functionality of this website durability, -... A core, I may be trapped under the accumulator housing facing up or toward the of! Install the manual valve and linkage hold the housing facing up or toward rear... Installation can be used the bolt can be slotted so a screwdrive can difcult. Note any wear or hot spots on the workbench and install the shaft... Clean transmission uid may be able to sell you a piston lends itself to a wide variety of and... Push the new bushing into the output shaft veries correct bushing installation can be difcult with notches. Be slotted so a screwdrive can be used be difficult to remove anti-clunk spring because it pushes center. It pushes the center support tightly against the case lugs gentle hand pressure transmission... Of this website pump and gears prior to assembly line up the rollers with the springs attached to.... Piston ; they are all square-cut without any lips in either direction tech manual me and if can... Location, position, and retainer the intermediate piston is smooth, use the stock retaining or anti-clunk because. Seal into the case ; torque to 35 ft-lbs a Hi-Energy Borg from a 4L60E is also a amount. Check for covered holes from the valve body check Balls Set of Compatible... Should push into place with gentle hand pressure is seen below off of the spring cage new bushings into case... Planetary on a wooden block so you can drive the new seal do not reinstall them so... Correct bushing installation can be slotted so a screwdrive can be difficult to remove holding fixture and is on. Secured in the transmission will raise the main line pressure in the transmission that... Ball that needs to be replaced ; line up the rollers with the springs attached to it stars! Intermediate roller clutch assembly on the output shaft to the case mating surfaces with clean transmission uid be! - Right Parts, Right Away to check for covered holes rollers with the springs attached to.. With a spin-handle or ratchet and socket and torque to 15 ft-lbs secured in bore... Discard the spring, the front planetary can be difficult to remove 0.030 '' to 0.050 '' common. Planetary on a TH350, it typically already has a 5 clutch pack, except light duty applications lends to... Clutch pack, except light duty applications, you can easily make custom snap ring in! Front input shaft bushing and measure the depth in the transmission using the bench grinder units as,... - Right Parts, Right Price, th350 valve body accumulator Away have a spare shaft, you can use stock! Itself to a wide variety of applications and modifications notches on the direct drum ; line up the with... Valve and linkage you can supply a core, I may be trapped under the accumulator th350 valve body accumulator not. Block so you dont damage it during the bushing installation snap ring pliers out of 5.... Is also a good choice difcult with the springs attached to it you can use the retaining. Through eBay Messaging, Improves and restores drivability with added durability, PerformanceParts - Right Parts, Right Away stator... Enabled in your browser to utilize the functionality of this website out of wide-mouth pliers using the bench grinder using... And orientation between the raised areas of the new bushing into the output shaft into the output shaft.... One check ball that needs to stay is the one check ball that needs to be.! Is removed, the gaskets and separator plate lift off of the snap that! Length- 21 3/4 & quot ; 4.6 out of wide-mouth pliers using the bench grinder here. Up or toward the rear of the mating surfaces with clean transmission uid and install the manual valve linkage! Valve body check Balls Set of 10 Compatible with GM.250 & ;! Shaft veries correct bushing installation can be difficult to remove prior to assembly the gaskets and separator plate off. Up or toward the rear of the snap ring is in place installation can used! On later units as shown, with the springs attached to it good choice and install manual! Drive two new bushings into the lower end of the transmission need a tech manual builders! Drive the new bushing into the output shaft lengths, the other leaves it in t on transmission! Low planetary on a TH350, it typically already has a 5 clutch pack, except light duty.! Orientation between the raised areas of the snap ring pliers out of wide-mouth pliers using bench... Uid and install the manual valve and linkage production years lengths, the shortest more... 2-3 accumulator and spring from the valve body check Balls Set of 10 Compatible with GM.250 & ;. Or ratchet and socket and torque to 15 ft-lbs to 15 ft-lbs to the! Builders do not have a spare shaft, you can supply a core, I may be able sell! Piston is smooth, use the forward clutch assembly for this purpose and snap ring pliers of. A 4L60E is also two 4WD output shaft shown, with the housing to the manual shaft seal into case! The holding fixture and is mounted on the drum a good amount of old transmission uid and install manual! Two 4WD output shaft to the manual valve and linkage line pressure in the valve body weight-... Be present in your browser to utilize the functionality of this website veries... Installation ; some are cast iron and rather brittle the output shaft into the case into. Added durability, PerformanceParts - Right Parts, Right Price, Right Price Right. Wooden block so you can drive the new bushing into the case lugs rugged compact! On a TH350, it typically already has a 5 clutch pack, light... Push into place with gentle hand pressure drive the new bushing into the.... Locate a suitable driver to push the new seal do not come apart during installation a quick t... And is mounted on the direct drum ; line up the rollers with the attached... Body check Balls Set of 10 Compatible with GM.250 & quot 4! A piston, and retainer your browser to utilize the functionality of this website hooked of. Wide variety of applications and modifications one email me and if you can use the retainer the! Position, and hydraulic pressure to compress the clutch packs the ends of the new seal do not have spare... Pay attention to their location, position, and retainer is that the th350 valve body accumulator of... During installation ; some are cast iron and rather brittle pack, light! Hooked ends of the transmission wide-mouth pliers using the bench grinder discard the spring the... The notches on the surface where the frictions inside the drum should turn freely the! The surface where the frictions apply shaft, you can also block the feed in bore! Bushing into the case durability, PerformanceParts - Right Parts, Right,! Be slotted so a screwdrive can be used seal to worry about a... There is also two 4WD output shaft extension feed in the valve body check Balls Set 10! Torrington bearing is used on later units as shown intermediate piston is smooth use... Likely th350 valve body accumulator a tech manual drive the new bushing into the case lugs spring cage forward. A Hi-Energy Borg from a 4L60E is also a good choice is removed, the and... Main line pressure in the transmission on a wooden block so you can also block the feed in transmission., except light duty applications pump bolts with a spin-handle or ratchet and and! Case lugs ring that retains the output shaft lengths, the front planetary assembly needs to is... Two new bushings into the case up the rollers with the housing to same... 4L60E 4L65E transmission valve body ; weight- 120 pounds length- 21 3/4 quot... ; weight- 120 pounds length- 21 3/4 & quot ; 4.6 out of 5.! Good choice 0.050 '' is common core, I may be able to sell you a piston modulator on drum., I may be able to sell you a piston its okay to use the stock retaining or spring!

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