Part 1
ASSEMBLY
Special Tools:
NOTE: If the transmission assembly is being reconditioned (clutch/seal replacement) or replaced, it is necessary to perform the Quick Learn Procedure using the Scan Tool . TCM Quick Learn
1. Install the output bearing cups using Installer.
2. Install low/reverse piston retainer gasket.
3. Install low/reverse piston retainer.
4. Install low/reverse piston retainer-to-case screws and torque to 5 Nm (45 in. lbs.).
NOTE: The Low/Reverse Clutch Piston has bonded seals which are not individually serviceable. Seal replacement requires replacement of the piston assembly.
5. Install low/reverse clutch piston.
6. Assemble guide bracket assembly as shown in.
CAUTION: When installing, be sure guide bracket and split sleeve touch the rear of the transmission case.
7. Install guide bracket pivot shaft.
8. Install park sprag pivot retaining screw and torque to 4.5 Nm (40 in. lbs.).
9. Install low/reverse piston belleville spring into position
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10. Install snap ring and remove compressor tool.
11. Install rear carrier front bearing cone.
12. Check output bearing preload. Output bearing preload must be checked and adjusted if any of the following items have been replaced:
- Output shaft (rear carrier assembly)
- Output shaft bearings
- Transmission case
a. PRELOAD CHECK/SHIM SELECTION: Install rear output shaft bearing cone and Support Plate.
b. Install Support Plate. Lightly tighten retaining screws. Screws should be below the plate surface, but do not snug screws.
c. Turn case over on arbor press so that the plate is resting on the press base. CAUTION: The output shaft will extend through the hole of Support Plate. Ensure your press table has clearance for the output shaft.
d. Install shim on output shaft. Apply small amount of petrolatum onto the shim to hold it in place. Use the original shim as a starting point. If original shim is not available, use the thickest shim available.
e. Install output shaft/rear carrier into rear bearing. The shaft must be pressed into position. Use special tool Bearing Installer (Disc) Extension handle and (Handle) to press shaft into rear bearing.
f. Do not re-use old output shaft nut because the removed stake weakens the nut flange. Using special Wrench and Wrench socket , install new output shaft nut. Do not reuse old output shaft nut. Tighten new output shaft nut to 271 Nm (200 ft. lbs.).
g. Check the turning torque of the output shaft. The shaft should have 1 to 8 in. lbs. of turning torque. If the turning torque is higher than 8 in. lbs., install a thicker shim. If turning torque is less than 1 in. lb., install a thinner shim. Make sure there is no end play.
h. The new nut must be staked after the correct turning torque is obtained. Use special Staking Tool to stake output shaft nut. CAUTION: Failure to stake nut could allow the nut to back-off during use.
13. Install low/reverse clutch pack. Leave uppermost disc out to facilitate snap ring installation.
14. Install low/reverse reaction plate snap ring.
15. Install one low/reverse clutch disc.
16. Install low/reverse reaction plate with flat side up.
17. Install a new tapered snap ring (tapered side out). Make sure that the snap ring ends are oriented as shown.
18. Measure low/reverse clutch pack. Press down clutch pack with finger and zero dial indicator. Record measurement in four (4) places and take average reading. Low/Reverse clutch pack clearance is 0.84 to 1.60 mm (0.033 to 0.063 inch).
19. Select the proper low/reverse reaction plate to achieve specifications.
NOTE: The 2/4 Clutch Piston has bonded seals which are not individually serviceable. Seal replacement requires replacement of the piston assembly.
20. Install 2/4 clutch pack
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21. Install 2/4 clutch belleville spring.
22. Install 2/4 clutch retainer.
NOTE: Verify that Compressor is centered properly over the 2/4 clutch retainer before compressing. If necessary, fasten the bar to the bellhousing flange with any combination of locking pliers and bolts to center the tool properly.
23. Compress 2/4 clutch just enough to facilitate snap ring installation.
24. Measure 2/4 clutch clearance: Set up dial indicator as shown in. Press down clutch pack with finger and zero dial indicator. Record measurement in four (4) places and take average reading. The 2/4 clutch pack clearance is 0.76 to 2.64 mm (0.030 to 0.104 inch). If not within specifications, the clutch is not assembled properly or is excessively worn. There is no adjustment for the 2/4 clutch clearance.
25. Install the #7 needle bearing to the rear sun gear. The number 7 needle bearing has three antireversal tabs and is common with the number 5 and number 2 position. The orientation should allow the bearing to seat flat against the rear sun gear. A small amount of petrolatum can be used to hold the bearing to the rear sun gear.
