Differential Bearing Preload Adjustment Using Existing Shim

Fig 1: View Of Tool L-4436 & Torque Wrench

Courtesy of CHRYSLER LLC

1. Position the transaxle assembly vertically on the support stand, differential bearing retainer (3) side up. See Fig 1.
2. Install Differential Tool L-4436A (1) into the differential and onto the pinion mate shaft.
   Fig 2: Checking Differential Bearings Turning Torque

   Courtesy of CHRYSLER LLC

   1 - DIFFERENTIAL TOOL L-4436-A

   2 - TORQUE WRENCH

3. Rotate the differential at least one full revolution to ensure the tapered roller bearings are fully seated.
4. Using Differential Tool L-4436A (1) and an Inch-Pound Torque Wrench (2), check the turning torque of the differential. The turning torque should be between 5 and 18 inch-pounds.  See Fig 2.
5. If the turning torque is within specifications, remove tools. Setup is complete.
6. If turning torque is not within specifications, proceed with the following steps.
   • Remove differential bearing retainer from the transaxle case.
   • Remove the bearing cup from the differential bearing retainer using Remover 6062A.
   • Remove the existing shim from under the cup.
   • Measure the existing shim.
   • If the turning torque was too high when measured, install a 0.05 mm (0.002 inch) thinner shim. If the turning torque is was too low, install a 0.05 mm (0.002 inch) thicker shim. Repeat until 5 to 18 inch-pounds turning torque is obtained.

     Oil baffle is not required to be installed when making shim selection.

   • Install the proper shim under the bearing cup. Make sure the oil baffle is installed properly in the bearing retainer, below the bearing shim and cup.
   • Install the differential bearing retainer using Installer 5052 and Handle C-4171. Seal the retainer to the housing with MOPAR® Adhesive Sealant and torque bolts to 28 N.m (250 in. lbs.).
7. Using Differential Tool L-4436A and an Inch-Pound Torque Wrench, recheck the turning torque of the differential. The turning torque should be between 5 and 18 inch-pounds. 

Shim thickness need be determined only if any of the following parts are replaced:

1. Transaxle case
2. Differential carrier
3. Differential bearing retainer
4. Extension housing
5. Differential bearing cups and cones