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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Automatic Transmission - 4T65-E - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Differential Carrier End Play Check (FWD Only)

Differential Carrier End Play Check (FWD Only)

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Special Tools

For equivalent regional tools, refer to Special Tools .

    Fig 1: View Of Case Extension Assembly & Bolts
    GM10517Courtesy 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).
    4. CAUTION: Refer to Fastener Caution .
  4. Install only two of the four case extension bolts (5). Do not torque the bolts. Tighten them only until the case extension is fully seated.
    5. Fig 2: View Of J 25025-8, J 26958-10A And J 8001 On Transmission Case
    GM10520Courtesy of GENERAL MOTORS CORP.
  5. Position the transmission so that the case extension is facing upward.
  6. Install J-25025-8:  mounting post, J-26958-10A:  adapter plug and J-8001:  dial indicator set.
  7. Set the dial indicator to zero.
    8. CAUTION: 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:  snap ring remover or a large screwdriver in order to lift the differential/final drive carrier assembly. Pry up on the vehicle speed sensor reluctor wheel through the vehicle speed sensor hole in the case extension.
    9. Fig 3: Identifying Differential Carrier/Case Thrust Washer
    GM10522Courtesy 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:  dial indicator set and J-25025-8:  mounting post.
  11. Install the case extension bolts and tighten to 36 N.m (26 lb ft).
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