Clearance and Design Specifications

Front and Rear Differential Specifications

Twin-Grip Differential
A Twin-Grip limited-slip differential is available as an option in all AMC automobiles except Eagle models.
The 7-9/16 axle is equipped with an unloading cone type-limited slip differential. The conventional type differential divides available torque equally between both driving wheels, causing the wheel with the least traction to slip first. Twin-Grip provides many times the torque of the slipping wheel to the driving wheel, however the unit is not a positive-lock type design and will release before excessive driving force can be directed to one rear wheel.

TWIN-GRIP SERVICE
The unloading cone-type Twin-Grip differential is serviced as an assembly only.
Do not disassemble this differential.

CAUTION: After installing a Twin-Grip unit in the axle housing, do not attempt to rotate one axle shaft until both are in position. Rotating one axle shaft without the other axle shaft being installed will result in misalignment of the side gear hub and side gear splines and prevent installation of the second axle shaft.

WARNING: Do not use on-automobile type wheel balancers on the rear wheels of automobiles equipped with a Twin-Grip differential unless the wheel opposite the wheel being balanced is removed and the rear end of the automobile is raised.

Powertrain - Driveline Combinations:

Axle Size And Ratio Identification:

Front Differential

Specifications:

Rear Differential

Specifications:

Pinion Variance Chart: