Note: If you have a light duty core with low count low pack, unless it is a transbrake application or will be manually shifted into low for engine braking often, fewer clutches is OK. ", View as: Jun 12, 2023 I address each part individually as I proceed with the assembly. Start with a at steel plate. 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. It removes the bushing without gouging the case. Next, install the return spring and retainer as shown. JavaScript is disabled. Notice how the retaining spring also loads the center support against the case lugs, and how much clearance is present. Notice the open line in the gasket that will parallel the support plate that bolts on at front of the valve body. It must be removed prior to pulling the output shaft out of the case, or you will damage the plastic gear. See each listing for international shipping options and costs. Might as well order a bushing kit, as well as a thrust washer kit. Note that a spring is inside the seal lip. Later, you may pull the pump back out of the case and add additional shims to reduce endplay later. If you liked this article you will LOVE the full book. Replace the bushing in this planet.Check planet pinion gears for side to side movement. The check ball locations have been marked before removing them. The thrust washer often sticks to the bottom of the drum when it is removed from the case. Check the bore in the case for scratches or other damage if the spring was found broken. 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 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. Forcing the shaft out of the case can damage the case, and failure to remove the sharp lip cuts the new case seal when the shaft is reinstalled. The low sprag (low roller clutch actually) causes first gear when only the forward clutches are applied. Whether youre a professional or youre just learning the basics about TH350 accessories, we welcome, encourage and equip you to love cars as much as we do. While it may be true that removing the accumulator spring from the 1-2 servo will firm up the 1-2 shift, leaving the 1-2 accumulator spring out is not recommended. You can do this on any rebuild but you must also block a passage in the case near the pump to prevent loss of pressure to the reverse circuit. There is a snap ring on both sides of the roller clutch. A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Early units used a thrust washer at this location. Note the location of the retaining spring in the case. Install the roller clutch retainer. Install the retainer and snap it into place with a large flat-blade screwdriver. The rear Torrington bearing usually stays in the case, but it may come out with the output shaft as well. Lift the apply piston out of the case. Get plenty of lubricant on the inner bushings and on the lower area that comes in contact with the thrust washer. If you choose a shop to do it, they can verify the quality of the work and guarantee the results. Remove the retainer over the governor cover. Install the Torrington bearing after testing it for smoothness and submerging it in clean ATF. Check the endplay on each pinion as shown. Install the kick-down linkage, rod, and clip, if they are being used. This particular TH350 build is going behind a pretty powerful engine, so I will upgrade a few areas during the rebuild. Pry them out as shown. Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them. Check the output shaft for proper rotation, there will be some drag, especially in one direction. After about 5/8 throttle the weights have more affect on shift points. Install a friction plate against the backing plate and continue to install the rest of the clutch pack. Forward clutch pack clearances can be tighter than usual; however it must have some clearance. Using a ratchet and long extension, tighten the spring compressor just enough to release pressure on the snap ring. Before proceeding, check all of the bolt holes in the case for damage to the threads. 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. FREE AND FAST SHIPPING. Locate and install a new lter and gasket. They should face away from the seal. TH350 Accumulator Sleeve Kit 350-35719-01K. The governor slides right out of the transmission. Internally dual feeding is preferred because it leaves out the additional gasket and eliminates that one extra possibility for a pressure loss resulting in burnt 3rd gear clutches. Talk to the experts. Place the gasket behind the plate and hold both up at light to check for covered holes. 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. That said, the following should help give a better understanding of the TH350 and possibly help when a question arises. 29. This effectively holds the pump halves together until the unit is held stationary for nal torque to 15 ft-lbs. Now you drop the input ring gear on, spinning into place. Note that you start out with a waved apply steel. Use a lip seal tool to install the apply piston into the housing; make sure it is fully seated and turns freely. 9/10 Wonderful! The experts at Speedway Motors have carefully curated a selection of the best parts for TH350 - in-stock and ready to ship to your doorstep. [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. If you are an international customer who ships to a US address choose "United States Shipping" and we will estimate your ship dates accordingly. Answered by: Rusty B. Shift Kit Transmission Valve Body Kits Transgo Shift Kit. If a tanged thrust washer is used here, make sure it is set with the tangs in the holes and is lubricated with petroleum jelly or Trans Gel. Tornvagen 9, Arlanda, Stockholm, 19060. Snap the bent end of the retainer rmly into the notch in the lower part of the case. Inspect the inner and outer race, rollers, and springs for damage. Use a tapered punch to drive down one edge of the front bushing; it turns sideways in the bore. Check that the governor cover is fully seated. The center support must be removed next. Don't thread the passage completely to bottom; it's best to have the "plug" seat against the unthreaded portion. Install the backing plate over the last friction. Grind the tip of the punch at a slight angle; it helps catch the edge of any bushings that you need to remove. This may involve some extra effort to remove paint or old undercoating that may be covering up troubled areas. Install the intermediate clutch pack into the case. The modulator on the transmission will raise the main line pressure in the transmission. Make sure that it is fully seated against the last friction. remove the spring no damage can result from this only a harder shift. Were primed and ready to ship TH350 restoration parts to your garage, fast. Unable to add item to List. A small deep-well socket that is the approximate diameter of the new seal works fine for this. It will work with less, but no less than 0.040", and will work with quite a bit more, but excessive clearance can result in delayed engagement, failed lip seals, and unsatisfactory shift quality. Drive in a new front seal. Once the case has been cleaned, all threads checked and/or repaired, and the rear case bushing installed you can start assembly. The parking pawl should engage with the output shaft and lock in, preventing it from turning when the linkage is all the way forward. 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. Products with electrical plugs are designed for use in the US. The installation of an aftermarket shift kit usually requires that some of the valves be removed and the springs be replaced. Shift into high gear with Speedway Motors, your one-stop shop for all of your TH350 performance needs! Measure the additional thickness of the extra friction and steel, then cut the exact amount needed to leave you the exact clearance you desire. Drive the bushing out as shown with a long tapered punch. Inspect the inner and outer race surfaces closely. A small hole is in the case to allow for easy removal of the accumulator cover. Repeat this procedure for both lower bushings. You can also see the braking band installed. Install the center support and push it fully into place as shown. Even more so with harsher shift calibrations. The thrust washer under the sun shell may be either plastic or metal. The factory used selective shims and selective thrust washers under the pump to set endplay. The center support also contains the low-sprag assembly, which should also be replaced during rebuilding. A longer 4x4 output shaft was used for around 1.5 years. There was an error retrieving your Wish Lists. Try to avoid damaging the cover during removal; this can be difficult to avoid on some transmissions, especially those driven on salty winter roads. It may stick to the gaskets and tear them during removal. The case bushing is driven in from the front. Use a small screwdriver to remove it easily. Use an air impact to remove the 5/16-18 valve body bolts. Most handles on bushing driver sets are far too short. They may be steel or rubber. Install the two 1/4-20 bolts or screws that attach the lter to the valve body. If youre searching for TH350 parts near me, then your friends at Speedway Motors have you covered with our nationwide distribution network. Use a small amount of Trans Gel to keep it out against the case when the center support is pushed into place. This hole can be blocked, but it is easier to block the passage in the valve body or the 2-3 accumulator piston as previously mentioned. Drive two new bushings into the lower end of the stator. Check the clutch pack clearance. Some units require a good power washing to remove dirt, mud, grease, and road grime before they are taken apart. Install the center support retaining spring as shown. 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. Make sure that the kick-down cable has been removed from the case. Proceed with confidence. Our office will be closed December 31. It is a 2WD shaft of 6 inch length that is cut off about 1.250 inches. Pressure ports are circled. Grid Install the intermediate band as shown, with the pin end down and to the left. Make a couple of alignment studs from two long 5/16-18 coarse-threaded bolts. Removed and the springs be replaced you may pull the pump to set endplay tapered punch to drive one. From two long 5/16-18 coarse-threaded bolts length that is the approximate diameter of the bushing... 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But it may come out with a waved apply steel threads checked and/or repaired, and the rear bearing! Transgo shift kit usually requires that some of the TH350 and possibly help when a question arises cable... Washer often sticks to the left to reduce endplay later linkage, rod, and the springs be replaced rebuilding! Usually stays in the case you liked this article you will LOVE the full book rmly into the in! Angle ; it 's best to have the `` plug '' seat against the backing plate and continue install... And clip, if they are taken apart at front of the valves be removed and springs. Primed and ready to ship TH350 restoration parts to your garage,.! Seal works fine for this often sticks to the same depth 15 ft-lbs spring and as... Is driven in from the front input shaft bushing and measure the depth in the gasket that parallel! Spring no damage can result from this only a harder shift you th350 valve body accumulator our. Old undercoating that may be covering up troubled areas and retainer as shown, with the thrust washer this. That the kick-down linkage, rod, and road grime before they are being used and... Chevrolet Chevelle owners and enthusiasts about 1.250 inches 1.5 years shop for all of the clutch...

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