Front Driving Axle Assembly Replacement; Axle Joint Component Replacement - GMC G Service Manual

4C-4 FRONT DRIVING AXLE
A. Chamfer Toward
The Seal
B. Shaft Yokes
C. Universal Joint
33. Oil Deflector
35. Spacer 38. Spindle
36. Seal 46. Axle Shaft
Figure 2 — Axle Shaft Assembly
FRONT DRIVING AXLE
ASSEMBLY REPLACEMENT
H Remove or Disconnect (Figure 1)
• Raise the vehicle until the weight is removed from the
front springs. Support the vehicle with jack stands
placed behind the front springs.
1. Propeller shaft. Refer to PROPELLER SHAFT
(SEC. 4A).
2. Connecting rod from the steering arm. Refer to
FRONT SUSPENSION AND AXLE (SEC. 3C).
3. Brake caliper (40). Refer to HYDRAULIC FOUNDA­
TION BRAKES (SEC. 5A2).
• Support the brake caliper (40) so as not to
stretch or damage the brake hose.
4. Shock absorbers from the axle brackets. Refer to
FRONT SUSPENSION AND AXLE (SEC. 3C).
5. Front stabilizer bar. Refer to FRONT SUSPENSION
AND AXLE (SEC. 3C).
6. Axle vent hose and clips (figure 3).
7. Nuts, washers, U-bolts, spacers and plates. Refer to
FRONT SUSPENSION AND AXLE (SEC. 3C).
• Support the axle with a jack.
8. Axle assembly out from under the vehicle.
Clean
Axle assembly.
•_
|y
Inspect
• The assembly and repair or replace as necessary.
Install or Connect (Figure 1)
NOTICE: For steps 1,5, 6 and 7, see "Notice" on
page 4C-1 of this section.
• Axle assembly positioned under the vehicle.
1. Plates, spacers, U-bolts, washers and nuts. Refer to
FRONT SUSPENSION AND AXLE (SEC. 3C).
2. Axle vent hose and clips. Refer to figure 3.
3. Front stabilizer bar. Refer to FRONT SUSPENSION
AND AXLE (SEC. 3C).
4. Shock absorbers to the axle brackets. Refer to
FRONT SUSPENSION AND AXLE (SEC. 3C).
5. Brake caliper (40). Refer to HYDRAULIC FOUNDA­
TION BRAKES (SEC. 5A2).
6. Connecting rod to the steering arm. Refer to FRONT
SUSPENSION (SEC. 3C).
7. Propeller shaft. Refer to PROPELLER SHAFT
(SEC. 4A).
• Lower the vehicle.
L00376
AXLE JOINT COMPONENT
H "H l
Remove or Disconnect (Figure 2)
• Raise the vehicle.
1. Axle shaft (46). Refer to "Axle Shaft Replacement" in
this section.
• Support the shaft yoke in a bench vise or on a short
piece of pipe.
2. U-joint (47).
• Using a brass drift and soft hammer, tap the end
of a U-joint bearing cup enough to drive the
opposite bearing cup from the yoke.
• Support the other yoke and drive the remaining
U-joint bearing cup out in the same manner.
REPLACEMENT