Truck Transfer Case

How Does a Transfer Case Work?


The transfer case transfers power from the transmission to the front and rear axles by means of drive shafts. It also synchronizes the difference between the rotation of the front and rear wheels, and may contain one or more sets of low range gears for off-road use. Transfer cases give you the power of all-wheel drive, so you can take your trucks where the work is. Whatever the terrain; across sand, mud, ice, or snow, you will have maximum power in all transmission speeds and in just about any off-highway application.

What does a transfer case do on a truck?

A truck transfer case takes the output of the transmission and splits it between the front and rear drive axles through two driveshafts, so every axle can pull. Most heavy-truck units add a low-range gear set for off-road or PTO-driven work, and many carry a PTO opening to run a pump, winch or blower.

Where is the transfer case located?

It bolts to the frame directly behind the transmission (or remote-mounts a short driveshaft back), between the transmission and the rear axle, with a second output pointing forward to the front axle. On all-wheel-drive vocational trucks — fire apparatus, mixers, oilfield and military — look under the cab floor just aft of the transmission.

Truck transfer cases for sale

Pro Gear & Transmission stocks new, used and rebuilt transfer cases for Fabco, Rockwell/Meritor, Spicer/Dana, Mack, Oshkosh, Borg Warner and New Venture Gear applications. Shop truck transfer cases in the store, see our rebuilt transfer cases, or call 877-776-4600 with your model tag for same-day pricing.

transfer case

Below are common applications:

  • Fire Trucks
  • Transit Mixers
  • Dump & Block Trucks
  • Agriculture & Mining Rigs
  • Sweepers
  • Logging Units
  • Military Vehicles
  • Oil and Water Drilling Rigs
Truck Transfer Cases
Oshkosh Truck
Borg Warner
Fabco
Rebuilt Spicer Truck parts
New Venture Gear truck parts
Rockwell replacement parts
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