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Drivetrain

Transfer Case

A gearbox splitting torque between front and rear axles in AWD and 4WD vehicles.

Definition

Center differential or clutch packs determine front/rear bias.

Off-road and rally setups may add low-range gearing.

Related terms

  • TransmissionThe gearbox selecting gear ratios between engine and drive wheels.
  • ClutchA friction device connecting and disconnecting engine power to the transmission.
  • DifferentialA gearbox allowing drive wheels to rotate at different speeds while turning.
  • DriveshaftA rotating shaft transmitting torque from transmission to differential in RWD an
  • Limited-Slip DifferentialA differential that limits speed difference between left and right wheels under
  • Final Drive RatioThe ring-and-pinion ratio multiplying torque before it reaches the wheels.

Category: Drivetrain · Updated August 31, 2026