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

DIFFERENTIAL BEARING PRELOAD ADJUSTMENT USING EXISTING SHIM

Fig. 348: Installing Tool L-4436-A Into Differential & Onto Pinion Mate Shaft

1. - DIFFERENTIAL TOOL L-4436-A
2. - TORQUE WRENCH
3. - DIFFERENTIAL BEARING RETAINER

1. Position the transaxle assembly vertically on the support stand, differential bearing retainer side up.

2. Install Tool L-4436-A into the differential and onto the pinion mate shaft .

Fig. 349: Measuring Turning Torque Of Differential

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 Tool L-4436-A and an inch-pound torque wrench, check the turning torque of the differential . The turning torque should be between 5 and 18 inch-pounds.

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:

1. Remove differential bearing retainer from the transaxle case.
2. Remove the bearing cup from the differential bearing retainer using Tool 6062A.
3. Remove the existing shim from under the cup.
4. Measure the existing shim.
5. 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 5-18 inch-pounds turning torque is obtained.

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

6. 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.
7. Install the differential bearing retainer using Tool 5052 and C-4171. Seal the retainer to the housing with MOPAR Silicone Rubber Adhesive Sealant and torque bolts to 28 N.m (250 in. lbs.).

7. Using Tool L-4436-A and an inch-pound torque wrench, recheck the turning torque of the differential.

The turning torque should be within 5-18 inch-pounds.

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

• Transaxle case
• Differential carrier
• Differential bearing retainer
• Extension housing
• Differential bearing cups and cones

DIFFERENTIAL BEARING SHIM CHART

PRELOAD ADJUSTMENT W/O SHIM

1. Remove the bearing cup from the differential bearing retainer using Miller special Tool 6062A.

2. Remove existing shim from under bearing cup.

3. Reinstall the bearing cup into the retainer using Miller Special Tool 6061, and C-4171.

NOTE: Oil baffle is not required when making the shim calculation.

4. Install the bearing retainer into the case. Torque bolts to 28 N.m (250 in. lbs.).

5. Position the transaxle assembly vertically on the support stand and install Miller Special Tool L-4436-A into the bearing retainer.

6. Rotate the differential at least one full revolution to ensure the tapered roller bearings are fully seated.

7. Attach a dial indicator to the case and zero the dial. Place the tip on the end of Special Tool L-4436-A.

8. 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 retainer sealing surface.

9. Using the end play measurement that was determined, add 0.18mm (0.007 inch). This should give you between 5-18 inch pounds of bearing preload.

10. Remove the differential bearing retainer. Remove the bearing cup.

11. Install the oil baffle. Install the proper shim combination under the bearing cup.

12. Install the differential bearing retainer. Seal the retainer to the housing with Mopar Silicone Rubber Adhesive Sealant. Torque bolts to 28 N.m (250 in. lbs.).

13. Using Miller Special Tool L-4436-A and an inch-pound torque wrench, check the turning torque of the differential . The turning torque should be between 5-18 inch-pounds.

NOTE: If turning torque is too high install a 0.05mm (0.002 inch) thicker shim. If the turning torque is too low, install a 0.05mm (0.002 inch) thinner shim.

Repeat until 5-18 inch-pounds of turning torque is obtained.