Trac-Lok - Locking Differential: Diagnosis Dodge Durango I

TESTING

Note. Trac-Lok differential can be tested without removing differential case from axle housing.

1. Place blocks under both front wheels. Ensure engine is off and transmission is in Neutral. Release parking brake. Raise one rear wheel until it is completely clear of the floor. Remove wheel. Install Adapter (6790) to wheel studs and tighten securely.
2. Using torque wrench on adapter, rotate axle and record torque required. Repeat procedure for remaining rear wheel position. If rotational torque for either rear wheel is less than 30 ft. lbs. (40.1 N.m) or greater than 200 ft. lbs. (271 N.m), Trac-Lok unit must be replaced or repaired.

Cleaning & Inspection

1. Clean components with solvent and dry with compressed air. Inspect plates in clutch pack for scoring, wear or damage.
2. Inspect remaining components for damage or wear. Replace components if necessary.