Automatic Transmission - GMC T Series 1994 Repair Manual

J 29369-1
38. Input Drive Gear
Figure 8— Removing the Input Gear Bearing
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Clean
1. Bearings.
• Remove all old lubricant and dirt.
2. Shafts.
3. Sprockets.
4. Chain.
5. Oil feed ports and channels in each case half.
Apply compressed air to each oil feed port and
channel to remove any obstructions, or cleaning
solvent residue.
6. All mating and sealing surfaces.
L*
Inspect
1. Bearings and thrust washers for spalling, brinnel-
ing, or corrosion.
2. Gear teeth for excessive wear or damage, spalling,
cracks, or corrosion.
BEARING AND SEAL
REPLACEMENT
Install or Connect (Figures 10 through 12)
Tools Required:
J 8092 Driver Handle
J 36370 Bearing Installer
J 33833 Bearing Installer
J 36372 Bearing Installer
J 33843 Seal Installer
J 33831 Seal Installer
J 33832 Bearing Installer
J 2619-01
F5392
CLEANING AND INSPECTION
ASSEMBLY
Removal
3. Gear splines for excessive wear, spalling, cracks,
twist, or corrosion.
4. Shaft splines for excessive wear, spalling, cracks,
distortion, or corrosion.
5. Retainer rings for excessive wear, distortion or
damage.
6. Case halves for damaged or warped mating sur­
faces, cracks, porosity, or damaged thread holes.
7. Synchronizer stop rings for cracks, chips, spalling,
or excessive wear.
8. Synchronizer hub and sleeve for cracks, chips,
spalling, or excessive wear.
9. Pads on mode fork and range fork for wear and
distortion
10. Oil pump gears and case halves for wear, spalling,
cracks, and damage. Replace complete assembly
if there is wear.
11. Input gear, planetary carrier, and range shift hub
tooth chamfers for excessive wear.
• Use Dexron® HE automatic transmission fluid or
equivalent for lubricant during assembly.
1. Needle bearings (82) into the drive sprocket (20)
using J 36370 and J 8092 (figure 10).
2. Needle bearings (24) into the rear case half (17)
using J 33832 and J 8092.
• Bearing must be flush with the boss on case
housing.
3. Bearing (61) into the front case half (45) using
J 8092 and J 33833.
4. Retainer (40).
5. Bearing (6) to the pump retainer housing (8) using
J 33833 and J 8092 (figure 11).
6. Bearing (84) into the input gear (38) using J 36372
and J 8092.