GMC 1989 Light Duty Truck Repair Manual page 236

4B7-6 LOCKING DIFFERENTIALS
31. Differential Case Halves
32. Screw
33. Cam Plate
34. Guide Clip
35. Thrust Sleeve
36. Side Gear Thrust Washer
ADJUSTMENT OF THE DIFFERENTIAL
• If it is necessary to replace the cam gear, the right
hand side gear, or the reaction blocks, the entire
differential must be adjusted. The differential is
adjusted by using selective thickness thrust washers
37. Plates
38. Pinion Thrust Washer
39. Pinion Gear
40. Side Cam Gear
41. Reaction Block
42. Pinion Yoke
Figure 9— Differential Components
• It is important to build up the differential properly.
Figure 10— D ifferen tial Case Halves
43. Governor and Latching Bracket
44. Plates
45. Side Gear Thrust Washer
46. Side Gear
47. Guide Clip
48. Governor
behind each side gear, and selective thickness
reaction blocks between the side gears.
The proper clearance between parts is necessary
for the proper operation of the unit.
F-05915
F-04793