What is a Transfer Case
The transfer case is a part of the drive train in all wheel drive and 4 wheel drive vehicles. The transfer case receives power from the transmission and sends it to both the front and rear axles. This can be done with gears, hydraulics, or chain drive.
Manual Shift On-the-Fly transfer cases have a selector lever on the driver’s side floor transmission hump and may also have either two sealed automatic front axle locking hubs or two manual front axle hub selectors of “LOCK” and “UNLOCK” or “FREE”.
Electronic Shift On-the-Fly (ESOF) transfer cases have a dash-mounted selector switch or buttons with front sealed automatic locking axle hubs or drive flanges. Some vehicles, such as Jeeps, also have what is called SelecTrac, which has a slider switch on the center console. Unlike the manual transfer case, this system has a transfer case motor.
A-Affordable Transmissions Center transfer case repair service always includes a visual inspection. Removal and replacement of damaged internal gears. Bearings, gasket and seals, in the transfer case are also replaced when needed.