Rear Suspension Front Crossmember - Hummer H1 Service Manual

9-62 Axles, Suspension, and Frame
LEFT
FRAME RAIL
CROSSMEMBER
MOUNTING
BRACKET
VENT LINE
BRACKET
Figure 9-147: Rear Crossmember Replacement
Installation
1. Install left and right rear crossmember mounting brackets
on rear crossmember (Figure 9-147).
2. Install rear crossmember and mounting brackets on frame
rails.
3. Apply thread-locking compound to hole and secure
crossmember mounting bracket to left frame rail with
washer and bolt. Tighten bolt to 65-78 lb-ft (88-106 N•m).
4. Secure crossmember mounting bracket to left frame rail
with vent line bracket, three washers, bolts, washers, and
locknuts. Do not tighten bolts.
5. Secure crossmember mounting bracket to right frame rail
with vent line bracket, four washers, bolts, washers, and
locknuts. Do not tighten bolts.
6. Install six washers, bolts, washers, and locknuts securing
rear crossmember to left and right mounting brackets.
Tighten bolts to 90 lb-ft (122 N•m).
7. Tighten three bolts on mounting bracket and left frame rail
to 90 lb-ft (122 N•m).
8. Tighten four bolts on mounting bracket and right frame
rail to 90 lb-ft (122 N•m).
_________________________________________
VENT LINE BRACKET
RIGHT FRAME RAIL
REAR CROSSMEMBER
9. Secure vent line to rear crossmember and two vent line
brackets with three clamps and bolts.
10. Secure steering gear to left frame rail with three washers,
lockwashers, and bolts. Tighten bolts to 60 lb-ft (81 N•m)
(Figure 9-146).
11. Install axle support brackets and side mounting brackets.
12. Install axle.
13. Install lower control arms.
14. Install right front caliper-to-tee brake line.
15. Install right front upper control arm.
16. Install lower radiator tube.
17. Install radiator.

REAR SUSPENSION FRONT CROSSMEMBER

REPLACEMENT
Removal
1. Remove rear-front tiedown brackets.
2. Remove axle (Section 6).
3. Remove axle support brackets and side mounting brackets.
4. Remove rear lower control arms.
5. Remove three bolts and clamps securing brake line and
two vent lines to front crossmember (Figure 9-148) and
(Figure 9-149).
6. Remove brake line from tee and tube coupling.
BRAKE LINE
FRONT CROSSMEMBER
Figure 9-148: Brake Line and Tube Coupling
7. Remove two locknuts, washers, bolts, washers, and two
radius rods from crossmember mounting brackets
(Figure 9-150).
TUBE COUPLING
Location
®