Rear Differentials: Inspection: Notes

Wash all the disassembled parts clean, and examine them for wear, damage, or other defects. Repair or replace defective parts as necessary.

Hypoid driven gear and drive pinion

• If abnormal tooth contact is evident, find out the cause and adjust to give correct tooth contact at assembly. Replace the gear if excessively worn or incapable of adjustment.
• If crack, score, or seizure is evident, replace as a set. Slight damage of tooth can be corrected by oil stone or the like.

Side gear and pinion mate gear

• Replace if crack, score, or other defects are evident on tooth surface.
• Replace if thrust washer contacting surface is worn or seized. Slight damage of the surface can be corrected by oil stone or the like.

Bearing

Replace if seizure, peeling, wear, rust, dragging during rotation, abnormal noise or other defect is evident.

Thrust washers of side gear and pinion mate gear

Replace if seizure, flaw, abnormal wear or other defect is evident.

Oil seal

Replace if deformed or damaged, and at every disassembling.

Differential carrier

Replace if the bearing bores are worn or damaged.

Differential case

Replace if its sliding surfaces are worn or cracked.

Companion flange

Replace if the oil seal lip contacting surfaces have flaws.