Hummer H1 (2006+). Manual - part 266

9-42 Axles, Suspension and Frame

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3.

Install the drain plug in the geared hub.

4.

Remove the bolt, washer and the vent line/speed sensor lead bracket from the geared hub (Figure  9-70).

5.

Disconnect the vent line from the geared hub fitting.

6.

Remove the speed sensor from the sensor bracket on the geared hub.

7.

Remove the cotter pin, slotted nut and the washer from the tie rod end (Figure  9-69).

8.

Using puller J–24319–B, disconnect the tie rod end from the geared hub.

9.

Remove the access plug, washer, halfshaft retaining bolt, lockwasher and the halfshaft from the geared hub (Figure  9-70).

WARNING:  Geared hub must be supported during removal and installation. Failure to support the geared hub may
cause personal injury or damage to the equipment.

10. Remove the cotter pin and the slotted nut from the upper ball joint. Remove the ball joint stud from the geared hub.

11. Remove the cotter pin and the slotted nut from the lower ball joint. Remove the ball joint stud from the geared hub.

12. Lower the support and remove the geared hub.

I

Figure 9-70:   Geared Hub Replacement

Installation

WARNING:   To avoid injury and damage to the equipment, support the geared hub during removal and installa-
tion.

1.

Position the geared hub between the upper and the lower control arms and secure the upper ball joint to the geared hub with the
slotted nut, but do not tighten (Figure  9-70).

2.

Secure the lower ball joint to the geared hub with the slotted nut, but do not tighten.

UPPER BALL JOINT

GEARED HUB

SLOTTED NUT

GEARED HUB

ACCESS

HALFSHAFT

RETAINING

BOLT

SLOTTED NUT

VENT LINE

VENT LINE

 FITTING

 PLUG

LOWER

 BALL JOINT

 BRACKET

HALFSHAFT

SPEED

SENSOR

SENSOR

BRACKET

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 Axles, Suspension and Frame  9-43

NOTE:  If necessary, tighten the slotted nut to install the cotter pin. When the slotted nuts are tightened to the prescribed torque
values, the cotter pins must have a minimum of 50% engagement with the nut slots.

3.

Tighten the slotted nut securing the upper ball joint to the geared hub to 65 lb-ft. (88 N•m). Install the cotter pin.

4.

Slide the halfshaft into the geared hub.

NOTE: Make sure the mounting hole and the bolt are cleared of old Loctite.

1.

Apply thread-locking compound to the halfshaft. retaining bolt and secure the halfshaft to the geared hub with the washer and
the halfshaft retaining bolt. Tighten the halfshaft retaining bolt to 37 lb-ft. (50 N•m).

5.

Secure the washer and access plug to the geared hub. Tighten the access plug to 8-13 lb-ft. (11-18 N•m).

NOTE:  If necessary, tighten the slotted nut to install the cotter pin.

6.

Tighten the slotted nut securing the lower ball joint to the geared hub to 73 lb-ft. (99 N•m). Install cotter pin.

7.

Insert the tie rod end into the geared hub and secure with the washer and the slotted nut. Tighten the slotted nut to 70 lb-ft. (95
N•m). Install the cotter pin  (Figure  9-71).

8.

Connect the vent line to the geared hub fitting (Figure  9-72).

9.

Install the speed sensor in the sensor bracket and push in until the sensor contacts the tone wheel on the halfshaft.

10. Secure the vent line, speed sensor lead and the clamp to the geared hub with the washer and the bolt. Tighten the bolt to 38 lb-

ft. (52 N•m) (the left side of vehicle uses two p-clamps to secure the speed sensor lead to the geared hub).

Figure 9-71:   Tie Rod End Into Geared Hub

TIE ROD END 

SLOTTED NUT

GEARED HUB

9-44 Axles, Suspension and Frame

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Figure 9-72:   Vent Line

11. Install the speed sensor and the retaining sleeve into the speed sensor bracket and push in until the sensor touches the tone

wheel.

12. Remove the fill plug and the washer from the geared hub (Figure  9-73). 

Figure 9-73:   Geared Hub Fill Plug

13. Fill the geared hub to the proper oil level (Refer to section 1).

14. Install the washer and the fill plug on the geared hub. Tighten the fill plug to 8-13 lb-ft. (11-18 N•m).

15. Install the wheel.

16. Check the alignment. 

GEARED HUB

GEARED HUB 

FITTING

SPEED

SENSOR

LEAD

VENT LINE

GEARED HUB

FILL PLUG

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 Axles, Suspension and Frame  9-45

Geared Hub Side Cover Replacement

NOTE:  Geared hub side cover replacement procedures are basically the same for the front and the rear covers. This procedure
covers the front side cover.

Removal

1.

Remove the wheel. 

2.

Remove the drain plug from the geared hub and drain the geared hub (Figure  9-74).

3.

Install the drain plug in the geared hub.

4.

Remove the eight bolts, washers and the side cover from the geared hub.

Figure 9-74:   Geared Hub Side Cover Replacement

Cleaning and Inspection 

NOTE:  Clean all the components, examine for wear or damage and replace if necessary.

1.

Using solvent, clean and dry the side cover.

2.

Inspect the side cover for damage.

Installation

1.

Apply anaerobic sealant to the side cover and allow to set until tacky.

2.

Apply thread-locking compound to the bolts and install the side cover to the geared hub with the eight washers and the bolts.
Tighten the bolts to 15 lb-ft. (20 N•m).

3.

Fill the geared hub to the proper oil level (Refer to section 1).

4.

Install the wheel.

Geared Hub Input Seal Replacement

Removal

1.

Remove the wheel.

2.

Remove the access plug and the washer from the geared hub (Figure  9-70).

3.

Remove the halfshaft retaining bolt, lockwasher and the halfshaft from the geared hub. Remove the v-seal from c-v joint
(Figure  9-77).

CAUTION:  Shim gaskets must be reused to maintain proper drive gear bearing adjustment.

4.

Remove the bolt, washer and the vent line/speed sensor lead bracket from the drive gear retainer (Figure  9-75).

GEARED HUB

SIDE COVER

DRAINPLUG