The car drive train offers two duties: one, it sends power evenly from the engine to all wheels that drives and it varies the amount of torque. The drive-train may also include the differential, a transfer case (in four-wheel and all-wheel drive vehicles) and the transmission also.

Types Of Differential Service

The differential is the mechanical part that spins both left and right wheels, but allows them rotate at different speeds so that the car can make turns. When a car makes a turn, the outer wheel has to turn faster than the inner wheel, becauseof the difference in the length of the paths they take. The differential is located mounted the two wheels, and is linked to each wheel by an axle shaft.

Four-wheel drive autos have a separate differential for each pair of wheels, connected via a transfer case. Differential fluid offers lubrication to gears, bearings, shafts and other internal parts. Heat, pressure and friction can slowly breakdown the additives in the differential fluid. In addition, small particles of metal and clutch material may come off as they wear and these particles can mix with the fluid. Fluids can equally become contaminated with water.

What IsTransfer Case Service

Four-wheel drive and all-wheel drive autos have transfer case service. This gearbox separates the transmission power output between the rear differential and the front differential. Most transfer cases lets the front wheels to be disengaged and spin smoothly during normal driving conditions. When desired, power is sent to all four wheels.

The transfer case fluid offers lubrication duties to gears, bearings, shafts, and other internal parts. Heat, pressure and friction slowly breaks down the additives available in the transfer case fluid. In addition,tiny particles of metal may come off the gears as this wear; these metal particles could mix with the fluid case fluid. Fluids can equally get contaminated with water.