For 1990-2009 cars

#### Special Tools

• | J 24433 Pinion Cone and Side Bearing Installer

• | J 42168-16 Spacers

• | J 45010 Getrag Axle Bearing Race Installer

• | J 45013-1 Cover Shim Gage

• | J 45013-2 Gage Assembly

• | J 45013-4 Gage Plate

• | J 45013-6 Depth Gage

1. Use the J 45013-6 (2) drop rod. Loosen the thumb screw and drop the rod through the hole on J 45013-2 (1).
2. Ensure the rod bottoms out in the bearing cup bore. Snug the thumb screw in order to record the distance.
3. Install the differential side bearings. Refer to Differential Side Bearings Assemble.
4. Use an old ring gear bolt. Attach the J 45013-6 (2) to the differential case as shown.
5. Ensure that the drop rod aligns with the post of J 45013-4 (1).
6. Snug the bolts.
7. Measure the gap (1) between the rod and the post on J 45013-6 (2). Record the measurement as C1.
8. 8. Rotate the differential case and ensure that the measurement C1 never changes.

Note: The A1 and A2 values are unique to each ring gear/pinion and are determined during the manufacturers gear/pinion noise and vibration setup and testing, stamped onto the side area of the gear.

9. Calculate the thickness value of differential right side shim, select corresponding differential case right side shim calculation table according to the A2 value stamped onto the side area of the gear. Calculating method are the following:

9.1. | For the differentials gear ratio of which is 3.42, subtract the measured distance C1 from 5 mm (0.197 in) to obtain C2, and add the C2 value to the C3 value so as to obtain right shim value. Refer to Differential Case Right Side Shim Calculation Table with and A2 value greater than 63.5 mm (2.5 in) or Differential Case Right Side Shim Calculation Table with an A2 value less than 63.5 mm (2.5 in).

9.2. | For the differentials gear ratio of which is 2.73, subtract the measured distance C1 from 10.5 mm (0.41 in) to obtain C2, and add the C2 value to the C3 value so as to obtain right shim value. Refer to Differential Case Right Side Shim Calculation Table with an A2 value greater than 63.5 mm (2.5 in) or Differential Case Right Side Shim Calculation Table with an A2 value less than 63.5 mm (2.5 in).

10. Remove all tools
11. Remove the planetary carrier bolts.
12. It may be necessary to heat the differential case in order to remove the planetary bearing housing.
13. Screw the slide hammer into the bolt that holds the shimming tools in the drive pinion housing.
14. Pull the bearing housing from the differential case.
15. Remove all of the shimming tools.
16. Install the shims (18) measured on the differential assembly side gear race (19).
17. Lightly lubricate the cup with gear lube.
18. Using J 24433 and J 45010 and a press, install the bearing race until it seats completely.
19. Install the differential case into the differential carrier.
20. Install the bearing cup and J 45013-1 on top of the race as shown.
21. Using J 42168-16 , install the bolts, spacer and washer through the cover. Snug the bolts.
22. Measure the gap as shown. This is the left side differential bearing shim thickness
23. Remove the bolts, cover and tools.
24. Using J 24433 and J 45010 , install the measured shims (18) in the cup bore.
25. Lightly coat the cup (19) with gear lube.
26. Press the bearing race into the bore until it seats.