Differential Turning Torque

DIFFERENTIAL TURNING TORQUE

NOTE: Differential turning torque should only be measured with the geartrain out of the transaxle. If measurement is taken with transaxle assembled, an inaccurate measurement will result.

NOTE: All differential cover-to-case bolts and extension housing-to-case bolts must be installed and torqued to obtain accurate measurement.

1. If transaxle is assembled, remove geartrain and leave differential in place.
2. Install differential cover and torque differential cover-to-case bolts to 54 Nm (40 ft. lbs.).
3. Install extension housing and torque extension housing-to-case bolts to 28 Nm (250 in. lbs.).
4. Place transaxle on work bench so axle centerline is parallel to the ground.
5. Install turning torque tool C-4995 to differential at side opposite extension housing.
6. Using an in. lb./Nm dial indicator, rotate differential case multiple times and record measurement (Figure 1). Differential turning torque should be within 2.3-3.4 Nm (20-30 in. lbs.). Refer to shim chart for proper shim selection. If turning torque measured is less than 2.3 Nm (20 in. lbs.), install a thicker shim. If turning torque measured is greater than 3.4 Nm (30 in. lbs.), install a thinner shim.




Figure 1 Differential Turning Torque Measurement

Differential Bearing Shim Chart (Part 1):

Differential Bearing Shim Chart (Part 2):