Differential Carrier End Play Check (FWD Only)

Tools Required

• J 8001  Dial Indicator Set
• J 25025-8  Dial Indicator Mounting Post. See Special Tools .
• J 26958-10A  Adapter Plug
• J 28585  Snap Ring Remover. See Special Tools .

Fig 1: View Of Case Extension Assembly & Bolts
Courtesy of GENERAL MOTORS CORP.
1. Make sure that the differential carrier/case thrust washer (714) and the thrust bearing (715) are still on the differential/final drive carrier assembly (700).
2. Install the case extension seal (8) onto the case extension (6).
3. Install the case extension assembly (6) onto the transmission (3).
NOTE: Refer to FASTENER NOTICE .
4. Install only two of the four case extension bolts (5).

   Tighten:  Do not torque the bolts. Tighten them only until the case extension is fully seated.

Fig 2: Installing J 25025-8, J 26958-10A & J 8001 To Transmission Case
Courtesy of GENERAL MOTORS CORP.
5. Position the transmission so that the case extension is facing upward.
6. Install J 25025-8  , J 26958-10A  and J 8001  .
7. Set the dial indicator to zero.
NOTE: Use a piece of wood or rubber while prying with J 28585 or a large screwdriver, to prevent damage to VSS bore.
8. Use J 28585  or a large screwdriver in order to lift the differential/final drive carrier assembly. See Special Tools . Pry up on the vehicle speed sensor reluctor wheel through the vehicle speed sensor hole in the case extension.
Fig 3: Measuring Differential Carrier/Case Thrust Washer
Courtesy of GENERAL MOTORS CORP.
9. Note the dial indicator reading before changing the differential carrier/case thrust washer (714):
   • If the dial indicator reading is less than 0.12 mm (0.005 in), install the next smaller size thrust washer, then recheck.
   • If the dial indicator reading is greater than 0.62 mm (0.025 in), install the next larger size thrust washer, then recheck.
   • If the dial indicator reading is 0.12-0.62 mm (0.005-0.025 in), the thrust washer is correct.
10. Remove J 8001  and J 25025-8  . See Special Tools .
11. Install the case extension bolts.

    Tighten:  Tighten the case extension bolts to 36 N.m (26 lb ft).