In-Vehicle Check
WARNING: A VEHICLE EQUIPPED WITH A LIMITED SLIP DIFFERENTIAL WILL ALWAYS HAVE BOTH WHEELS DRIVING. IF, WHILE THE VEHICLE IS BEING SERVICED, ONLY ONE WHEEL IS RAISED OFF THE FLOOR AND THE REAR AXLE IS DRIVEN BY THE ENGINE, THE WHEEL ON THE FLOOR COULD DRIVE THE VEHICLE OFF THE STAND OR JACK.A Limited Slip differential can be checked for proper operation without removing the differential case from the rear axle housing.
Jack up one rear wheel and remove the wheel cover. Transmission must be in neutral and parking brake not applied.
Install Traction-Lok Torque Tool T59L-4204-A on the axle shaft flange studs as shown.
Using a torque wrench, rotate the axle shaft. Be sure that the transmission is in neutral, one rear wheel is on the floor, and the other rear wheel is raised off the floor. The breakaway torque required to start rotation should be at least 27 Nm (20 ft. lbs.). The initial breakaway torque may be higher than the continuous turning torque, but this is normal. The axle shaft should turn with even torque throughout the check without slipping or binding. If the torque reading is less than specification, service the differential.