Differential gears and bearings operate under substantial loads. Low lubricant, an incorrect fluid specification, contamination, or excessive heat can accelerate wear. Incorrect bearing preload or gear contact adjustment can also shorten component life.

Wear may develop gradually, producing a whine or roughness before a major failure occurs. Other problems can sound similar, so an inspection is needed to determine which components are affected.

Certified Transmission serves drivers in Council Bluffs, IA and Pottawattamie County who need help evaluating differential noise, leakage, or suspected internal wear.