Cleaning and Inspection

EXC. SURE-GRIP DIFFERENTIAL

Clean all parts in suitable solvent. Dry all parts except bearings with compressed air or shop towels. Allow bearings to air dry or dry with shop towels. Do not use compressed air to dry bearings as damage may result.

Inspect differential bearings and cups for wear, pitting, galling, flat spots or cracks. Any bearing or cup showing any signs of wear or damage must be replaced. Bearings and respective cups must be replaced as an assembly only. Do not attempt to interchange bearings and cups as bearing life will be affected.

Inspect non-machined differential case surfaces for nicks and burrs which can be removed with an oil stone or fine tooth file. Inspect pinion shaft bore to ensure it is not elongated or worn. If damage is evident, differential case must be replaced. Inspect machined differential surfaces and counterbores. They must be smooth and free of nicks, gouges, cracks and other visible damage. If damage is evident, differential case must be replaced.

Inspect pinion shaft for excessive wear, scoring or galling. Ensure shaft is smooth and concentric. If any wear or damage is evident, replace shaft. Inspect pinion shaft lockpin for damage and to ensure it has a snug fit in differential case. Replace lockpin or case as necessary.

Inspect pinion and ring gears for worn or chipped teeth, cracks, damaged bearing journals or attaching bolt threads. If any of the above are evident, replace ring gear and pinion as a matched set.

Inspect pinion and side gears. Gears must exhibit a uniform contact pattern without any signs of cracks, wear, scoring or galling. If any of the above are evident, replace all the gears. Inspect thrust washers for wear and replace as necessary.

Inspect differential bearing adjusters to ensure they rotate freely. If they bind, repair damaged threads or replace adjuster as necessary.
Inspect axle shaft C-locks for signs of cracks or wear and replace as necessary.

SURE-GRIP DIFFERENTIAL

No service other than cleaning can be performed on the Sure-Grip differential. If any differential parts are worn or damaged, replace unit.

Clean differential parts in fast evaporating mineral spirits or a dry cleaning solvent and dry with compressed air. Clean bearings with suitable solvent and air dry or dry with shop towels.

Inspect differential case for cracks and other visible damage. Replace as necessary.

Inspect differential bearings and cups for wear, pitting, galling, flat spots or cracks. Any bearing or cup showing any signs of wear or damage must be replaced. Bearings and respective cups must be replaced as an assembly only. Do not attempt to interchange bearings and cups as bearing life will be affected.

Inspect differential bearing adjusters to ensure they rotate freely. If they bind, repair damaged threads or replace adjuster as necessary.
Inspect axle shaft C-locks for signs of cracks or wear and replace as necessary.