Geared Hub Replacement - Hummer H1 Service Manual

9-8 Axles, Suspension, and Frame
Installation
WARNING: Lower control arm must be supported dur-
ing removal and installation. Failure to support lower
control arm may cause personal injury or damage to
equipment.
NOTE: On lower control arms, bolt heads are toward front of
vehicle.
1. Install lower control arm on brackets with two bolts, wash-
ers, and locknuts. Do not tighten locknuts (Figure 9-13).
BRACKET
COIL
SPRING
SPRING
POCKET
LOWER
CONTROL
ARM
LOWER BALL JOINT
Figure 9-13: Lower Control Arm Replacement
2. Install coil spring on lower control arm ensuring end of
coil spring fits in spring pocket of lower control arm.
3. Install lower ball joint on lower control arm, ensuring ball
joint is placed below lower control arm.
4. Secure lower ball joint to lower control arm with four
bolts, locknuts and eight washers. Tighten locknuts to 65
lb-ft (80 N•m).
5. Install lower ball joint on geared hub with slotted nut.
Tighten slotted nut to 73 lb-ft (99 N•m), and install cotter
pin in slotted nut.
6. Tighten locknuts on brackets to 260 lb-ft (353 N•m).
7. Apply thread-locking compound to threads of bolt. Install
bar link on lower control arm with two washers and bolt.
Tighten bolt to 70 lb-ft (95 N•m) (Figure 9-12).
8. Install shock absorber.
9. Install wheel (Section 6).
___________________________________________

GEARED HUB REPLACEMENT

NOTE: Replacement procedures are basically the same for
front and rear geared hubs. This procedure covers the front
geared hub.
Removal
1. Remove wheel.
2. Remove drainplug from geared hub and drain geared hub
(Figure 9-14).
GEARED HUB
SLOTTED NUT
Figure 9-14: Geared Hub Drainplug Location
3. Install drainplug in geared hub.
GEARED HUB
4. Remove bolt, washer, and vent line/speed sensor lead
bracket from geared hub (Figure 9-15).
5. Disconnect vent line from geared hub fitting.
6. Remove speed sensor from sensor bracket on geared hub.
7. Remove cotter pin, slotted nut, and washer from tie rod
end. (Figure 9-14).
8. Using puller J–24319–B, disconnect tie rod end from
geared hub.
9. Remove access plug, washer, halfshaft retaining bolt,
lockwasher, and halfshaft from geared hub (Figure 9-15).
WARNING: Geared hub must be supported during re-
moval and installation. Failure to support geared hub
may cause personal injury or damage to equipment.
10. Remove cotter pin and slotted nut from upper ball joint.
Remove ball joint stud from geared hub.
11. Remove cotter pin and slotted nut from lower ball joint.
Remove ball joint stud from geared hub.
12. Lower support and remove geared hub.
TIE ROD END
DRAINPLUG
®