The differential, commonly known as the gear box, contains gears which connect your car’s two axles. It consists of a drive pinion and ring gear to permit the rotation of two shafts at different speeds. Differential gears are part of the rear-axle assembly. They are used to convert the lengthwise flow of power from the engine through the clutches, transmissions, and propeller shafts into a right-angle direction. This change allows the engine power to turn the rear wheels (four wheel drive is used in some designs) and permits the wheels to move at different speeds, as when turning a corner.
The differential gears are submersed in gear oil to protect the moving metal surfaces from friction and wear. Normal driving subjects this fluid to high temperatures which eventually breaks down the fluid. The result is metal to metal contact and extremely high heat that eventually prevents gears from turning the car’s wheels.
- Extends the life of the differentials
- Minimizes the effect of oxidation deterioration due to heat and high speed driving
- Minimizes high speed foaming of the fluid which causes lower lubrication efficiency
- Maintains warranty requirements
Lube Express offers a drain and refill service which includes: draining old differential fluid and replacing it with the manufactures recommended gear oil.
Service Interval recommendation
Refer to your ownerâs manual for service intervals or ask a Lube Express technician for your vehicles manufactures recommended service intervals.
15 â 20 Minutes