GMC S Series 1994, Repair Manual

Page: 843 / 919

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.
ASSEMBLY
BEARING AND SEAL
REPLACEMENT
Install or Connect (Figures 9 through 11)
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
• 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 9).
2. Needle bearings (24), into the rear case half (17)
using J 36372 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 10).
6. Bearing (84) into the input gear (38) using J 36372
and J 8092.
7. Thrust washer (37) into planetary carrier (36).
8. Input gear (38) and thrust washer into planetary
carrier (36).
9. Carrier lock ring.
10. Bearing into front case half using J 36372.
11. Oil seal (1) into the rear extension (4) using
J 33843.
12. Input bearing retainer seal (42) into the input bear­
ing retainer (44) using J 33831.
13. Front output shaft seal (72) into to the front case
half (45) using J 33834 (figure 11).
14. Magnet (25) into front case half (45).
IN TER NA L COM PONENTS
Assemble (Figures 3, 4, 12, 13, and 14) ❖
1. Synchronizer hub (31) to the synchronizer sleeve
(29) along with the three struts (30).
• Align the previously scribed marks.
2. Spring retainers (32) to the synchronizer hub (31).
3. Main drive synchronizer stop ring (28) to the syn­
chronizer sleeve (29) and the synchronizer hub
(31).
4. Drive sprocket (20) to mainshaft (19).
•8092
J 36370
20. Mainshaft Drive Sprocket
82. Needle Bearings
F5394
Figure 9— Front Drive Sprocket Needle Bearing
Installation.
8. Pump Retainer Housing
J 8092
J 33833
F5855