GMC T Series 1994 Repair Manual page 812

7. Reverse gear (61), thrust washer (6), bearing (59),
overdrive gear (58), and rotor (57), if equipped
(2WD models only) (figure 10).
8. Synchronizer ring (73).
9. Retaining ring (72).
10. Synchronizer rings (74 and 75).
11. Synchronizer assembly (80).
12. Retaining ring (72).
13. Synchronizer rings (75, 74, and 73).
14. Retaining ring (72).
15. Bearing (83).
16. Second speed gear (82).
17. Retaining pin (70).
18. Thrust washer (84).
19. Retaining ring (85).
20. Spacer (86).
21. Bearing (88).
22. Synchronizer ring (90).
23. Third speed gear (87) and synchronizer assembly
(91).
24. Synchronizer ring (90).
25. Clutch gear (95).
COUNTERSHAFT
Important
• Do not disassemble the countershaft. Individual
components of the countershaft are not serviced. If
the countershaft is damaged or worn, it must be
replaced as a complete assembly.
REAR O IL RETAINER
EXTENSIO N HOUSING
BEARING REPLACEMENT (2WD MODELS)
Remove or Disconnect (Figures 1 and 2)
1. Extension oil seal (22 or 24). Refer to " Seal
Replacement" in this section.
2. Retaining ring (21).
3. Bearing (20) from extension (18 or 23).
Install or Connect (Figures 1 and 2)
Tool Required:
J 38807 Extension Housing Bearing Installer
1. Bearing (20) into extension (18 or 23) using
J 38807.
2. Retaining ring (21).
3. Extension oil seal (22 or 24). Refer to " Seal
Replacement."
SEAL REPLACEMENT (2WD MODELS)
Remove or Disconnect (Figures 1 and 2)
1. Extension oil seal (22 or 24).
• Pry the seal out with a small pry bar or equiva­
lent.
• Inspect the retainer (18 or 23) for damage.
Install or Connect (Figures 1, 2, 11, and 12)
Tool Required:
J 22834 Extension Housing Seal Installer
1. New seal (24), using J 22834 (figures 11 and 12).
MAIN DRIVE GEAR BEARING
RETAINER
Seal Replacement
++
Remove or Disconnect (Figures 3, 4, and 13)
1. Seal (115).
• Pry the seal out with a small pry bar or equiva­
lent.
V
Inspect
• Retainer nose for scoring, wear, or cracks, espe­
cially at the flange.
• Retainer for wear and damage.
Install or Connect (Figures 3, 4, and 13)
Tool Required:
J 38801 Main Drive G ear R etainer Seal
Installer
1. Seal (115) using J 38801.
• The lip of the seal goes toward the installing
tool (figure 13).