Checking and Changing Fluid
FLUID LEVEL CHECKCheck differential fluid by removing filler plug on the carrier left hand side. Fluid level should be no less than .20 inch below filler plug hole. Add SAE 80W, 85W or 90W gear oil as necessary to bring fluid within limits. Reinstall drain plug with gasket, and torque to 22-28 ft. lbs.
FLUID CHANGE
Differential gear oil should be changed at intervals of 30 months or 30,000 miles.
1. Remove differential drain plug, and allow gear oil to drain.
2. Install differential drain plug with gasket, and torque to 22-28 ft. lbs.
3. Remove differential filler plug and add approximately 1.6 pts. of SAE 80W, 85W, or 90W gear oil to differential. Fluid level should be no less than 0.20 inch below filler plug hole.
4. Reinstall filler plug with gasket, and torque to 22-28 ft. lbs.