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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 >> Case Extension Assemble (FWD Only)

Case Extension Assemble (FWD Only)

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Inspecting Case Extension Housing
    GM10606Courtesy of GENERAL MOTORS CORP.
  1. Inspect the case extension assembly (6) for the following conditions:
    • A damaged or porous sealing surface for the case extension seal
    • A damaged or porous sealing surface for the vehicle speed sensor
    • A damaged or porous sealing surface for the right drive shaft oil seal assembly
    • Damaged bolt holes
    • A worn or damaged front differential carrier bushing (7A) or output shaft bearing assembly (7B)
    • A porous or damaged case extension housing
    2. Fig 2: View Of Case Extension Assembly, Differential/Final Drive Carrier Assembly & Components
    GM10554Courtesy of GENERAL MOTORS CORP.
  2. Install the differential carrier/case selective thrust washer (714) onto the differential/final drive carrier assembly (700).
  3. Install the thrust bearing (715) onto the differential/final drive carrier assembly (700).
  4. Affix the seal (8) onto the case extension (6).
  5. Install the case extension assembly (6) onto the case (3).
    6. CAUTION: Refer to Fastener Caution .
  6. Install only two case extension bolts (5) for later removal. Tighten the bolts until the extension is flush to the case.
  7. Perform end play check, refer to Differential Carrier End Play Check (FWD Only) .
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