Disassembly

Typical 2 Pinioin Differential Assembly:

1. Remove lefthand differential roller bearing using differential bearing cone remover, tool No. T77F-4220-B1 and step plate T81P-4220-A or equivalents.
2. Remove differential bearing cup from case, then install over differential bearing.
3. With bearing cup in position, remove bearing from speedometer side of differential using differential bearing remover T57L-4220-A or equivalent.

Speedometer Drive Gear Replacement:

4. Remove speedometer drive gear.
5. Remove differential side gears and thrust washers by rotating gears toward case window.
6. Remove pinion shaft retaining pin using a 5/32 inch punch. Ensure speedometer gear has been removed before removing pin.
7. Remove pinion shaft, pinion gears and thrust washer.
8. Inspect final drive gear for damage and wear. If gear is to be replaced, remove rivets by drilling through rivet head with 5/16 inch drill, then chiseling off head. Punch rivet out of gear using a punch.