Forward Clutch Drum Rebuild Rebuilding the forward clutch is a relatively easy process. The top cover is cast aluminum with a 8-bolt rectangular pattern. The transmission casing is made of cast aluminum. The Turbo 350 transmission was introduced beginning in 1969. Applicable shipping fees will be charged, if required, on additional items added to the order.
Step 7: Note that there are two types of carriers. Step 2: Lower the planetary assembly into the case and turn it to engage it with the ring gear and seat fully against the thrust washer. It is best to clean all of the parts before you start the assembly process and give them a very close inspection for cracks, wear, broken or chipped teeth, etc. Check the governor weights and springs, and see that the plunger moves freely. Step 6: Install the snap ring and release the spring compressor.
The most torque from an engine that this transmission was applied to was 410 lb-ft. If you choose to do this, make sure to check the oil lubrication holes; drill them if necessary. This is due to their unbelievable strength, primarily due to their use of a cast iron center support which suspends the concentric shafts that join the clutch assemblies. Apply compressed air through the oil supply passages and listen for the clutch apply as well as air leaks. Because the input shaft is attached to the forward drum, it should be left in place during the rebuilding process. Once they are well lubricated, turn them by hand and feel for any roughness or tight spots.
Install a new roller clutch assembly with any level of rebuild; the springs tend to crack, break, and lose their tension in high-mileage units. Not proper intake-manifold vacumn to modulator 3. Be sure to blow out any chips left by the bushing-removal process from the output shaft bore and oil holes. I have raced it 6-7 times and placed up in the top 5 of every race; winning some. The intermediate roller clutch, or sprag assembly is attached to the front of the drum, and engaged with the intermediate friction plates in the forward part of the case.
Tighten the support plate bolts to 10 ft-lbs. Step 3: The lower bushings turn sideways in the bore. Step 3: Torrington bearings are not repairable if they are damaged; they must be replaced. Step 2: De-burr the edges of the manual shaft so it does not cut the seal as it passes through. Step 3: Most rebuild kits come with the hook-end metal sealing rings shown.
The Mega Monster Transmission features: the latest technology in our industry with only the best internal components for increased strength, dependable performance and monster torque capacity. Customer responsible for return shipping on core items. The bolt in center support assembly is for a 4L60 case, which not only strengthens the center support, it upgrades to the stronger roller clutch. Step 3: With a small screwdriver, remove the snap ring that holds the roller clutch retainer to the direct drum. Step 3: The drum should turn freely once in place. Set it on the end of the output shaft.
Make sure that the ends of the snap ring are between the raised areas of the spring cage. Note the depth of the last friction on the outer race. Oil Pump Assembly Rebuild The oil pump assembly contains the oil pump gears, the intermediate clutch apply piston, and spring cage. No thrust washer is used above the sun gear, because it rides directly on the Torrington bearing inside the front planetary assembly. Step 2: Install the Torrington thrust bearing over the factory shim. Locate the correct bushing driver for this task if you have one.
The alignment pin holes and the lower bolt are the same. I haven't found anybody who can beat the price. Truck freight fees also waived on this item. . Step 4: Clean and inspect the oil pump gears, as well as both halves of the oil pump assembly.