Drive Line Abrasion
Rear differential ring and pinion gears can suffer scoring, fretting and pitting due to lack of lubrication and corrosion. Stress cracks may develop that serve to weaken the gear surface and promote further damage. In Addition, excessive gear and bearing noise may indicate that abrasive metallic wear is occurring within your gear set. Progressive gear wear within this unit will have a negative effect on seals, causing fluid leakage.
Heat, moisture, extreme pressure and loads cause gear oil to break down or to be contaminated, leading to lubrication failure and worn gears.
Remove and replace old worn-out lubricant from manual transmissions, front and rear differentials, transaxles, and transfer cases. Install gear oil or the additive package required for vehicle application.
You’ll experience smoother gear-shifting, quieter operation and extended component-life, which will reduce major repair costs due to worn gears.