Rotational Torque Measurement Procedure (AWD)

Tools Required

• J 45053  Universal Clamp Press. See Special Tools .
• J 45165  Differential Torque Cross Bar. See Special Tools .

Fig 1: View Of Front Differential Assembly
Courtesy of GENERAL MOTORS CORP.
1. Rotate the transmission assembly so that the torque converter housing side is facing up.
2. Install the front differential assembly (13) into the empty transmission case.
Fig 2: Locating Torque Converter Housing Bolts
Courtesy of GENERAL MOTORS CORP.
3. Install the torque converter housing assembly (10) to the transmission case assembly.
4. Install 7 M8 x 1.25 x 30 mm non coated bolts (1) and hand tighten.
5. Install 2 M8 x 1.25 x 30 mm bolts (2) and hand tighten.
Fig 3: Installing Torque Converter Housing Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice in Cautions and Notices.
6. Tighten the torque converter housing bolts in sequence.

   Tighten:  Tighten the bolts to 23.5-35.3 N.m (17.33-26.00 lb ft).

Fig 4: View Of J 45165 & J 45053
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: When installing J 45053  (2), make sure that the top edge of the differential output spline is slightly below tip of brass inserts. See Special Tools .
7. Install the adjustable jaw portion of J 45053  (2) onto the exposed splined area of the differential assembly and lightly tighten the mounting bolts. See Special Tools .
8. Install J 45165  (1) ontoJ 45053  (2). See Special Tools .
9. Using a 5/8" socket and torque wrench, measure the rotational torque required to slowly rotate the front differential assembly and note the readings. Refer to Front Differential Gear Assembly, Unloaded Rotating Torque in Transmission Clearance Specifications .

   Rotational Torque Specification:  Specification should be within 0.70-1.20 N.m (6.195-10.621 lb in).

10. Compare this measurement with the specification in Transmission Clearance Specifications . If the obtained measurement is within specifications, the differential shim replacement is not necessary.

    If obtained measurement is not within the listed specifications, the front differential bearing race shim must be replaced.

11. Remove J 45165  (1) and J 45053  (2) from the front differential assembly. See Special Tools .
12. Remove the torque converter housing assembly and the front differential assembly from the transmission case.