Cam Unit Disassembly 7 1/2, 7 5/8, And 8 1/2-Inch; Cam Unit Disassembly - 9 1/2-Inch - GMC T Series 1994 Repair Manual

A. GEAR, RING 7 1 / 2 - INCH
B. GEAR RING 8 1 /2 - IN C H
C. GEAR, RING 9 1 / 2 - INCH
1. CASE, DIFFERENTIAL
2. PIN, STOP (9 1/2 ONLY)
3. SCREW , LOCK
4. B USHING , GOVERNOR
5. BUSHING LATCHING BRACKET
Figure 2— Removing the Governor Bushings
13. Left side gear (21), cam plate (16), and clutch
plates (12) as an assembly (cam unit).
14. Side gear thrust washer (13).
6. W ASHER, PINIO N THRU ST
7. GEAR, PINION
8. W ASHER, SIDE GEAR TH R U S T
9. PLATES, CLUTCH
10. GEAR, SIDE
11. G O VER NO R
12. PLATES, CLUTCH
13. W ASHER , SIDE GEAR T H R U S T
14. SLEEVE, SIDE THRU ST (9 1/2 ONLY)
Figure 1— Differential Components
CAM UNIT DISASSEMBLY
7 1/2, 7 5/8, AND 8 1/2-INCH
[ ♦ ■ ■ ► I Remove or Disconnect (Figures 1 and 3)
1. Retaining ring (22) (figure 3).
2. Clutch plates (12).
3. Guide clips (20).
4. Wave washer (15).
5. Cam plate (16).
6. Side cam gear (21).

CAM UNIT DISASSEMBLY - 9 1/2-INCH

Tools Required:
F4799
• Measure and record the overall length of the gear
15. W ASHER , W AVE
16. PLATE, CAM
17. BLOCK, T H R U S T
18. SHA FT, P IN IO N
19. C LIP, G U ID E
20. CLIP, G U ID E
21. G EAR, S ID E CAM
22. R IN G , R E TA IN IN G
Remove or Disconnect (Figures 1 and 4)
J 22912-01 Bearing Remover
assembly from the front of the gear to the back of
the side thrust sleeve (14) including the side gear
thrust washer (13).
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