Differential. Differential side bearings

Differential

REMOVAL

(1) Remove the axle shafts.

(2) Remove RWAL/ABS sensor from housing.

NOTE: Side play resulting from bearing races being loose on case hubs requires replacement of the differential case.

(3) Mark the differential housing and the differential bearing caps for installation reference (Fig. 19).

Fig. 19 Mark For Installation Reference

1 - REFERENCE MARKS

2 - REFERENCE MARK

3 - BEARING CAPS

(4) Remove bearing threaded adjuster lock from each bearing cap. Loosen the bolts, but do not remove the bearing caps.

(5) Loosen the threaded adjusters with Wrench C-4164 (Fig. 20).

(6) Hold the differential case while removing bearing caps and adjusters.

(7) Remove the differential case.

NOTE: Each differential bearing cup and threaded adjuster must be kept with their respective bearing.

Fig. 20 Threaded Adjuster Tool

1 - AXLE TUBE

2 - BACKING PLATE

3 - TOOL C-4164

INSTALLATION

(1) Apply a coating of hypoid gear lubricant to the differential bearings, bearing cups, and threaded adjusters. A dab of grease can be used to keep the adjusters in position. Carefully position the assembled differential case in the housing.

(2) Observe the reference marks and install the differential bearing caps at their original locations (Fig. 21).

Fig. 21 Bearing Caps & Bolts

1 - INSTALLATION REFERENCE MARKS

2 - INSTALLATION REFERENCE MARKS

3 - ADJUSTER LOCK

4 - BEARING CAP

(3) Install bearing cap bolts and tighten the upper bolts to 14 N*m (10 ft. lbs.). Tighten the lower bolts finger-tight until the bolt head is seated.

(4) Perform the differential bearing preload and adjustment procedure.

NOTE: Be sure that all bearing cap bolts are tightened to their final torque of 136 N*m (100 ft.lbs.) before proceeding.

(5) Install axle shafts and differential housing cover.

Differential side bearings

REMOVAL

(1) Remove differential case from axle housing.

(2) Remove the bearings from the differential case with Puller/Press C-293-PA and:

• Adapters C-293-48 and Plug SP-3289 for the 8 1/4 axle (Fig. 22).
• Adapters C-293-47 and Plug C-293-3 for the 9 1/4 axle (Fig. 23).

Fig. 22 Differential Bearing Removal-8 1/4 Axle

1 - SPECIAL TOOL C-293-PA

2 - SPECIAL TOOL C-293-48

3 - BEARING

4 - DIFFERENTIAL

5 - SPECIAL TOOL SP-3289

Fig. 23 Differential Bearing Removal-9 1/4 Axle

1 - SPECIAL TOOL C-293-PA

2 - SPECIAL TOOL C-293-47

3 - BEARING

4 - DIFFERENTIAL

5 - SPECIAL TOOL C-293-3

INSTALLATION

(1) Install differential side bearings. Use:

• Installer C-4340 with handle C-4171 for the 8 1/4 axle (Fig. 24).
• Installer C-4213 and Handle C-4171 for the 9 1/4 axle.

(2) Install differential case in axle housing.