Differential: Service and Repair

OVERHAUL

NOTICE: Do not remove the bearing inner race if not necessary.

1. Before disassembly, inspect the backlash of side gear and pinion, Refer to Pre-Inspection.
2. Disassemble in the order shown, Refer to Disassembly Notes.
3. Inspect all parts and repair or replace as necessary.
4. Measure the backlash after assembly, Refer to Pre-Inspection.

PRE-INSPECTION

Backlash of Side Gear and Pinion Gear

Measure the backlash by using the following procedure:
1. Install the left driveshaft and joint shaft in the differential assembly.





2. Support the driveshafts on V-blocks.
3. Measure the backlash of both pinion gears.

Backlash: 0 - 0.001 inch (0 - 0.03 mm)


DISASSEMBLY NOTES

Differential Bearing Inner Race (Side Opposite Ring Gear)

CAUTION: Hold the gear case with one hand so that it does not fall.





1. Remove the bearing inner race with the Special Service Tool (SST) (or equivalent).

Differential Bearing Inner Race (Ring Gear Side)

NOTICE: Use pads in the vise.





1. Remove the bearing inner race with the SST (or equivalent).

INSPECTION

Ring Gear

1. Inspect all parts and repair or replace if necessary.

NOTICE: If the differential case is replaced, adjust the bearing preload.





2. Inspect the ring gear for wear and cracks.

Differential Bearing Inner Race

NOTICE:
- Inspect all parts and repair or replace as necessary.
- When replacing the bearing inner race, replace the bearing outer race and inner race as a set.
- If the bearing is replaced, adjust the bearing preload.





1. Inspect for wear and rough rotation.
2. Replace if necessary.

ASSEMBLY NOTES

Speedometer Drive Gear





1. Install the speedometer drive gear as shown.

Differential Bearing Inner Race (Side Opposite Ring Gear)

1. Install the speedometer drive gear.





2. Install the new differential bearing inner race with the SST (or equivalent).

Differential Bearing Inner Race (Ring Gear Side)





1. Install the new differential bearing inner race with the SST (or equivalent).

Side Gears, Pinion Gears, And Pinion Shaft
1. Install side gears, pinion gears, and pinion shaft.





2. Install a new roll pin as shown to hold the pinion shaft.