GMC 1990 Light Truck Repair Manual page 290

4C4-4 K TRUCK FRONT AXLE
1. Shaft
Deflector
2.
3. Seal
4. Bearing
5. Tube
6. Bolt
7. Thrust Washer
8. Retaining Ring
Carrier Connector 39. Bearing
9.
10. Solenoid
13. Indicator Switch
14. Spring
15. Clip "
16. Shift Fork
17. Damper Spring
18. Shift Shaft
20. Shim
21. Differential Pilot
Bearing
22. Sleeve
23. Output Shaft
25. Plug
26. Washer
27. Pin
28. Bolt
29. Carrier Case
30. Bearing
31. Insert
Figure 2—Front Axle Components (K15-25 Models)
32. Sleeve
33. Side Bearing
34. Bolt
35. Differential Case
36. Pin
37. Ring and Pinion
Gears
38. Shim
40. Spacer
41. Bearing
42. Seal
43. Deflector
44. Flange
45. Washer
46. Nut
48. Bushing
51. Lock
52. Shaft
53. Thrust Washer
54. Side Gear
55. Thrust Washer
56. Differential Pinion
Gear
58. Bolt
59. Shaft
60. Vent Plug
F-6498
22. Sleeve(s) (32) and side bearing (33) cups (right side
only on K35).
• Turn the sleeve(s) to push the bearing cup(s)
out of the bore(s). Use J 36599 (figure 9).
23. Adjuster plug (61) with side bearing cup (33) and O-
ring (62) (K35 models). Use J 36615 (figure 10).
24. Nut (46). Use J 8614-01 to hold the pinion flange (fig­
ure 11).
25. Flat Washer (45).
26. Flange (44) with deflector (43). Use J 8614-01 (figure
12).
• Mount the left carrier case in J 36598. Be sure to use
the adapter plate (J 36598-6) for K15-25 models.
27. Pinion (37) with shim (38), bearing cone (39), and
spacer (40). Use J 36598 (figure 13).
28. Spacer (40) from the pinion.
29. Pinion bearing (39). Use J 8612-B (K15-25 models) or
J 36606 (K35 models) and a press (figure 14).
30. Shim (38).
31. Seal (42), and bearing cup and cone (41). Use
J 36598 (figure 15).
32. Bearing cup (39). Use J 36598 (figure 16).
33. Side bearings (33). Use J 22888-D and J 8107-2 (K15-
25 models) or J 36597 (K35 models) (figure 17).
34. Ring gear bolts (34).
• Ring gear bolts have left-handed threads.
NOTICE: Do not pry the ring gear from the case.
This will damage the ring gear and the differential
case.
35. Ring gear (37) from the differential case.
• Drive the ring gear off with a brass drift.
36. Roll pin (36) (K15-25 models). Drive out with a drift
and hammer (figure 18).
37. Bolt (24) (K35 models).
38. Shaft (52).
39. Differential pinion gears (56) and side gears (54).
• Roll the pinion gears out of the case with the
pinion thrust washers (55).
• Remove the side gears and the side gear thrust
washers (53). Mark the gears and the differen­
tial case as left and right.
• Remove spacer (57) (K35 models only).
40. Vent plug (60). Use a 6-point deep socket.
41. Bushings (48). Use J 36616 (figure 19).