GMC T Series 1994 Repair Manual page 233

SHIMS, THRUST WASHERS, AND ADJUSTER
SLEEVES
Inspect
I?
• Shims and thrust washers for cracks and chips.
Damaged shims should be replaced with an equal­
ly sized service shim.
• Adjuster sleeves for damaged threads. Replace if
required.
SHIFT MECHANISM
L*
Inspect
• Carrier connector (9) (if used) for damaged splines
and teeth. Replace as required.
• Shift fork for wear, scoring, and damage to thrust
surfaces. Replace if needed.
• Differential sleeve (22) and inner output shaft (23)
for damaged splines and teeth. Replace if neces­
sary.
• Damper spring (17) for breakage.
•Differential actuator (10) and engagement switch
(13) for damage and frayed wiring.
ACTUATOR CHECK
•A p p ly 12-volt battery voltage to the actuator termi­
nals. The plunger should extend within several sec­
onds.
• Disconnect the actuator from the power source.
The plunger should retract within several seconds.
• If the actuator does not operate as specified, it
should be replaced.
1. Right Output Shaft
2. Deflector
3. Seal
4. Output Shaft Bearing
5. Axle Tube
6. Bolt
7. Thrust Washer
8. Retaining Ring
9. Connector
10. Differential Actuator
13. Engagement Switch
14. Shifter Fork Spring
15. Shifter Shaft Ring
16. Shift Fork
17. Damper Spring
18. Shifter Shaft
20. Shim
21. Pilot Bearing
22. Differential Sleeve
25. Fill/Drain Plug
26. Washer
27. Pin
28. Bolt
29. Carrier Case
30. Differential Case Bearing
31. Insert
32. Sleeve
33. Side Bearing
34. Ring Gear Bolt
35. Differential Case
36. Pin
37. Ring and Pinion Gears
38. Pinion Shim
39. Pinion bearing
40. Spacer
41. Pinion Bearing
42. Seal
43. Deflector
44. Pinion Flange
45. Washer
46. Nut
48. Mounting Bushing
51. Lock
52. Pinion Shaft
53. Thrust Washer
54. Side Gear
55. Thrust Washer
56. Differential Pinion Gear
59. Left Output Shaft
60. Vent Plug
Figure 2— Front Axle Components - Legend
V3026