Hummer H1 (2002+). Manual - part 149

________________________________________

 Axles, Suspension, and Frame  9-57

®

05745159

RIGHT INTERMEDIATE BODY MOUNT BRACKET 
REPLACEMENT

Removal 

1.

Remove right intermediate body mount (Section 10).

2.

Remove three bolts, washers, and body mount bracket
from frame rail (Figure 9-135).

Figure 9-135:   Right Intermediate Body Mount 

Bracket Replacement

Installation 

1.

Apply thread-locking compound to three bolts and install 
body mount bracket on frame rail with three washers and 
bolts. Tighten bolts to 90 lb-ft (122 N•m) (Figure 9-135).

2.

Install right intermediate body mount (Section 10).

LEFT INTERMEDIATE BODY MOUNT BRACKET 
REPLACEMENT

Removal 

1.

Remove left intermediate body mount (Section 10).

2.

Remove tailpipe hanger (Section 11).

3.

Remove three locknuts, washers, and body mount bracket
from frame rail (Figure 9-136).

Installation 

1.

Install body mount bracket on three bolts and frame rail 
with three washers and locknuts. Tighten locknuts to 90 lb-
ft (122 N•m) (Figure 9-136).

2.

Install tailpipe hanger (Section 11).

3.

Install left intermediate body mount (Section 10).

Figure 9-136:   Left Intermediate Body Mount Bracket

Replacement

BODY

SPACER

SLEEVE

UPPER

CUSHION

BODY

MOUNT

BRACKET

FRAME

RAIL

LOWER

CUSHION

BODY

SPACER

SLEEVE

UPPER

CUSHION

LOWER

CUSHION

FRAME

RAIL

BODY

MOUNT

BRACKET

9-58

Axles, Suspension, and Frame

_________________________________________

®

REAR-REAR TIEDOWN BRACKET 
REPLACEMENT

Removal 

Remove two locknuts, washers, bolts, washers, and tie-down
bracket from frame rail (Figure 9-137).

Installation 

Install tiedown bracket on frame rail with two washers, bolts,
washers, and locknuts. Tighten locknuts to 261 lb-ft (354 N•m)
(Figure 9-137).

Figure 9-137:   Tiedown Bracket Replacement

REAR UPPER CONTROL ARM BRACKET 
REPLACEMENT

NOTE: 

The procedure for removing and installing the four

rear upper control arm brackets is basically the same. This pro-
cedure covers the right rear upper control arm front bracket.

Removal 

1.

Remove wheel.

2.

Remove bolt, clamp, and vent line from bracket, and
disconnect vent line from fitting

3.

Remove two locknuts, washers, bolts, washers, and upper
control arm from two control arm brackets  (Figure 9-139).

4.

Remove four locknuts, washers, bolts, washers, vent line
mounting bracket, and control arm bracket from frame
rail.

Figure 9-138:   Rear geared Hub Vent Line Location

Installation 

1.

Install control arm bracket, and vent line mounting bracket 
on frame rail with four washers, bolts, washers, and locknuts. 
Tighten locknuts to 172 lb-ft (233 N•m)  (Figure 9-139).

2.

Attach upper control arm to two upper control arm
brackets with cam washers, bolts, washers, and locknuts.
Tighten locknuts to 260 lb-ft (353 N•m).

3.

Connect vent line to fitting and secure clamp and vent line
to bracket with bolt  (Figure 9-138).

4.

Install wheel.

Figure 9-139:   Rear Upper Control Arm Bracket

Replacement

TIEDOWN

FRAME RAIL

BRACKET

BRACKET

FITTING

GEARED HUB

VENT

LINE

VENT LINE 

FRAME RAIL

CONTROL 

UPPER CONTROL ARM

ARM 

BRACKET

MOUNTING 

BRACKET

________________________________________

 Axles, Suspension, and Frame  9-59

®

05745159

REAR-FRONT TIEDOWN BRACKET 
REPLACEMENT

Removal 

1.

Remove wheel (Section 6).

2.

Remove four locknuts, washers, bolts, washers, and
tiedown bracket from frame rail (Figure 9-140).

3.

Remove two locknuts, washers, bolts, washers, vent tube/
speed sensor lead mounting bracket, and tiedown bracket
from rear suspension front crossmember mounting
bracket. 

Figure 9-140:   Rear-Front Tiedown Bracket 

Replacement

Installation 

1.

Install tiedown bracket and vent tube mounting bracket on 
rear suspension front crossmember mounting bracket with 
two washers, bolts, washers, and locknuts. Tighten lock-
nuts to 90 lb-ft (122 N•m) (Figure 9-140).

2.

Install tiedown bracket on frame rail with four washers,
bolts, washers, and locknuts. Tighten locknuts to 261 lb-ft
(354 N•m).

3.

Install wheel.

AXLE SUPPORT BRACKET AND SIDE 
MOUNTING BRACKET REPLACEMENT

Removal 

1.

Remove brake caliper and rotor.

2.

Remove locknut, seal washer, and output flange from
output shaft. Discard seal washer (Figure 9-141).

3.

Remove two bolts and brake adapter from axle.

4.

Remove two bolts and washers securing side mounting
bracket to axle (Figure 9-142).

5.

Remove two locknuts, washers, bolts, washers, support
bracket, and side mounting bracket from crossmember. 

6.

Remove two locknuts, washers, bolts, washers, and side
mounting bracket from support bracket (Figure 9-143).

Figure 9-141:   Brake Adapter and Output Flange

Replacement

Installation 

1.

Install side mounting bracket on support bracket with two 
washers, bolts, washers, and locknuts  (Figure 9-143).

2.

Install support bracket and side mounting bracket on
crossmember with two washers, bolts, washers, and
locknuts (Figure 9-142). Do not tighten bolts.

3.

Apply thread-locking compound to tapped holes of axle
and install two washers, bolts, and side mounting bracket
on axle. Tighten side mounting bracket bolts to 110-139
lb-ft (149-189 N•m) and support bracket bolts to 90 lb-ft
(122 N•m).

4.

Apply thread-locking compound to tapped holes of axle
and install brake adapter on axle with two bolts. Tighten
bolts to 110-139 lb-ft (149-189 N•m) (Figure 9-141).

5.

Install output flange on output shaft with seal washer and
locknut. Tighten locknut to 170 lb-ft (231 N•m).

6.

Install brake caliper and rotor.

TIEDOWN BRACKET

FRAME RAIL

CROSSMEMBER

MOUNTING

BRACKET

VENT TUBE

SPEED SENSOR LEAD

BRACKET

OUTPUT SHAFT

OUTPUT FLANGE

BRAKE ADAPTER

SEAL WASHER

AXLE

LOCKNUT

9-60

Axles, Suspension, and Frame

_________________________________________

®

Figure 9-142:   Side Mounting Bracket Removal 

Figure 9-143:   Support Bracket Replacement

FRONT SUSPENSION FRONT CROSSMEMBER 
REPLACEMENT

Removal 

1.

Remove front lower control arms.

2.

Remove lower radiator hose.

3.

Remove horn.

4.

Remove radiator front mounting bracket.

5.

Remove two nuts, washers, bolts, and washers securing
front crossmember to support bracket (Figure 9-142).

NOTE: 

 Note direction of bolts for installation.

6.

Remove four locknuts, washers, bolts, and washers
securing two splash shield brackets to frame rails
(Figure 9-144).

WARNING:  To avoid personal injury, support cross-
member during removal.

7.

Remove bolt and clamp securing harness to front cross-
member (Figure 9-145).

8.

Remove four locknuts, washers, bolts, and washers
securing crossmember mounting brackets to frame rails. 

9.

Slide crossmember and mounting brackets down and out
from under vehicle.

10. Remove six locknuts, washers, bolts, washers, and left and

right mounting brackets from crossmember. 

Figure 9-144:   Splash Shield Mounting

SUPPORT BRACKET

AXLE

CROSSMEMBER

SIDE

MOUNTING

BRACKET

SUPPORT BRACKET

SIDE MOUNTING BRACKET

FRAME RAIL

SPLASH SHIELD BRACKET