Differential Bearing Preload Adjustment

NOTE: Perform all differential bearing preload measurements with the transfer shaft and gear removed.

Differential Bearing Shim Chart:

ADJUSTMENT USING GAUGING SHIM
1. Remove the bearing cup from the differential bearing retainer using Tool L-4518, and remove the existing shim from under the cup.
2. Install a 0.50 mm (0.020 inch) gauging shim and reinstall the bearing cup into the retainer. Use an arbor press to install the cup.

NOTE: Oil Baffle is not required when making shim selection.

3. Install the bearing retainer into the case and torque bolts to 28 Nm (250 inch lbs.).
4. Position the transaxle assembly vertically on the support stand and install Tool C-4995, or equivalent into side gear.
5. Rotate the differential at least one full revolution to ensure the tapered roller bearings are fully seated.
6. Attach a dial indicator to the case and zero the dial indicator. Place the indicator tip on the end of Tool L-4436, or equivalent.
7. Place a large screwdriver to each side of the ring gear and lift. Check the dial indicator for the amount of end play.

CAUTION: Do not damage the transaxle case and/or differential cover sealing surface.

8. When the end play has been determined, refer to the Differential Bearing Shim Chart for the correct shim combination.
9. Remove the differential bearing retainer. Remove the bearing cup and the 0.50mm (0.020 inch) gauging shim.
10. Install the proper shim combination under the bearing cup. Make sure the oil baffle is installed properly in the bearing retainer, below the bearing shim and cup.
11. Install the differential bearing retainer. Seal the retainer to the housing with Mopar (R) RTV sealant. Torque bolts to 28 Nm (250 inch lbs.).
12. Using Tool C-4995, or equivalent and an inch-pound torque wrench, check the turning torque of the differential. The turning torque should be between 5 and 18 inch-pounds.

NOTE: If the turning torque is too high, install 0.05 mm (0.002 inch) thinner shim. If the turning torque is too low, install a 0.05 mm (0.002 inch) thicker shim Repeat until 5 to 18 inch-pounds turning torque it obtained.