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. Use a small screwdriver to depress the end of the speed-ometer drive gear retainer. (2,616 reviews) . International Customer Options|In the United States? If too tight it can creep in neutral. The input shaft is attached to the drum. This page was last modified on 10 May 2017, at 09:23. 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. Digital Sales Engineer Emerson - Stockholm, Stockholm County, Sweden. Below is a high performance TH350 piston for a drum without a center seal that would separate the two halves of the direct piston. Install the rooster comb and retaining nut. Locate and drive in the upper bushing with a suitable driver. 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. General Motors Turbo-Hydramatic 350. . Note the S-link that attaches the spool valve to the linkage on the manual shaft. Crankshaft Seal Adapters. Endplay should be no more than .044 inch and no less than .010 inch. Install the spring cage over the apply piston. Pay attention to this polished stub of the input shaft, it goes into the bushing that is in the end of the output shaft. Install any shims that were removed from under the pump thrust washer. Inspect the bushing for wear. If it does not seat easily and ush, remove the pump and check the hooked sealing rings, and check that both clutch drums are fully seated in the case. Lubricate all of the mating surfaces with clean transmission uid and install the output shaft into the case. However, bigger is not always better. On a stock rebuild you would normally install this lip seal. Make sure that the retainer that holds the roller clutch in the center support is fully seated in its groove. Install a friction plate on the rst steel plate, then alternate steel, clutch, steel, clutch, to end up with a friction plate. Install the support plate bolts; carefully line up all of the gaskets, separator plate bolt, and oil holes. Notice the open line in the gasket that will parallel the support plate that bolts on at front of the valve body. If your unit contains less than four check balls, a shift kit may have been installed at some point. RideTechs C10 kits are designed to be easy to install by a DIYer, [Click here to read more], In my previous Chevy big-block book, I covered how to determine the correct diameter and lengths for an effective system in both simple and precise detail so that sizing would not be an issue regardless of the spec of your big-block. Pry them out as shown. 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. Gently tighten the remaining valve body bolts, then torque to nal specications. Date published: 2023-01-08. . Clean all of the components of the direct drum. Install the intermediate band as shown, with the pin end down and to the left. Clean the 2-3 accumulator, spring; remove the old seal. Call 800.979.0122, 7am-10pm, everyday. Several companies offer an even heavier duty direct drum/sprag assembly. Submerge the frictions in clean ATF for a few minutes before installing them. Thrust washers are present between nearly every component in the drivetrain portion of the transmission where two parts spin independent of each other. They should face away from the seal. The backside of the center support provides the apply surface for the last friction, so it is considered a steel. was used between 1968-'86 in RWD and 4WD GM domestic vehicles. Please consider creating a new thread. Estimated International Ship Date: Clean and inspect all components, and install new parts where applicable. Note that all of the steels for the intermediate clutch pack have a notch as shown, which is installed in the lower right of the case. Some light-duty TH350s use four frictions in this drum; most units have ve. These regulate the amount of fluid, or how fast it can apply the clutches. If you are using a shift kit, use the gaskets and any other parts recommended from the shift kit. Apply compressed air through the oil supply passages and listen for the clutch apply as well as air leaks. The direct drum should use a wider bushing even on stock rebuilds. Remove the 1-2 accumulator from the case. Terms|Privacy. It may help to turn it clockwise and lift at the same time to get it out of the sprag assembly. Place the upper valve body gasket on the separator plate and align all of the holes carefully. Nov 21, 1999 I've got two shift kits. 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. A bearing will not fit a thrust washer design planetary unit with out machine work. Monster provides gaskets and seals for all TH350 transmission parts, such as the accumulator, valve body, pump system, and many more. Locate the correct three-tang thrust washer for the front planetary carrier. 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. It is not serviceable, so if the Torrington bearing is defective, the front planetary assembly needs to be replaced. Be sure that the band is fully engaged in the notch as shown. The thrust washer often sticks to the bottom of the drum when it is removed from the case. The rear Torrington bearing usually stays in the case, but it may come out with the output shaft as well. Install the oil pump pressure screen/lter into the case. Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them. You may have to push each roller in slightly to get it started. 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. I also discussed [Click here to read more], The Family Tree In some cases where you are after every last bit of ET, using fewer clutches can cause less frictional loss in 2nd and high gear. Notice the dowel pins threaded into the case, you use these and the case to align the pump halves. Remove the second ring from the bottom if dual feeding. If the piston is too low, the bottom flat steel plate can drop below the grooves in the drum and bind up the piston. The valve can be pulled from the case with a small magnetic screwdriver. Notice the scraped and split low reverse friction in the intermediate piston cavity. There was an error retrieving your Wish Lists. Make sure that the kick-down cable has been removed from the case. Make sure that the hooked ends of the new seal do not come apart during installation. You are using an out of date browser. 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. Front Planetary and Sun Gear Assembly Removal. You must note their position in the transmission when they were removed, so that you can get the correct parts in the correct place and in the correct orientation later on during assembly. Be sure to blow out any chips left by the bushing-removal process from the output shaft bore and oil holes. Some fluid will still be trapped under the valve body, under the accumulators, and in the case oil passages. 9/10 Wonderful! Use a wide flat-blade screwdriver to pry the free end of the center-support retaining ring inboard far enough to clear the case lugs (as shown). Cast-finish paint looks very much like the factory finish. Turn the outer race in both directions to test the operation of the intermediate clutch assembly. The TH350 is a rugged and durable unit, and fairly simple in construction and operation as far as automatic transmissions are concerned. Be prepared and keep a large pan under the transmission the entire time. Hipster only offers this in a reverse pattern valve body, we offer many valve bodies in a forward pattern. Use a suitable spring compressor to remove the snap ring, spring cage, and apply piston from the drum. . The design of the OE planet determines bearing or thrust washer use. A later-model spring cage is shown with the springs attached to the cage. Remove the 2-3 accumulator and spring from the valve body. A at support plate holds the valve body separator plate and gaskets in place. Clean, inspect, and submerge it in clean ATF prior to installation. Minimum clearance is .030. Stay Updated with Emails from Summit Racing. Next, install the return spring and retainer as shown. 700R4 4L60 4L60E 4L65E Transmission Valve Body Check Balls Set of 10 Compatible with GM .250" 4.6 out of 5 stars . The case is now empty and ready to be cleaned and inspected. Clean the front planetary Torrington bearing with clean ATF. Install all of the valve body bolts by hand and be careful that none of them are cross-threaded. Tornvagen 9, Arlanda, Stockholm, 19060. Note that the internal pump gear has two lugs that engage with the torque converter. It is also a common practice for experienced builders to leave out the two lower check balls and increase the size of the separator plate holes at those locations. Inspect for wear on the rear pump half where the inner and outer gears ride. Loosen the four bolts that hold the tail housing in place. Note the depth of the last friction on the outer race. The stock TH350 center support is shown stacked on top of an aftermarket bolt-in center support. This indicates that it has debris inside or is damaged. Take note of the orientation of the seals, the lip will face towards the "oil" side of the piston, not the clutch side. Look at the park pawl notch to help index it. Apply a small amount of red Loctite to all bushings before driving them in place. This low/reverse spring compressor is a very simple homemade tool. Remove these two bolts and remove the parking pawl guide from the case. Locate the modulator valve, new modulator, and seal. Clearance of 0.050" to 0.070" will work well. Slightly to get it out of the sprag assembly upper valve body we!, Stockholm County, Sweden pump gear has two lugs that engage with the torque converter ring... Or thrust washer design planetary unit with out machine work to 0.070 '' will work.! 4L65E transmission valve body separator plate and align all of the intermediate clutch assembly 4.6 of! 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