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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Repair Instructions >> Reaction Sun Gear and Drum Assemble >> Assembly Procedure

Assembly Procedure

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    Fig 1: Locating Inspection Areas On Reaction Sun Gear and Drum
    GM10619Courtesy of GENERAL MOTORS CORP.
  1. Inspect the reaction sun gear and drum assembly (678) for the following:
    • Worn or scored bushings
    • Damaged reaction sun gear teeth
    • The band apply area of the drum for discoloration or wear
    • The welds connecting the sun gear to the drum for voids or cracks
    • A worn or damaged 1-2 support outer race
    2. Fig 2: Installing Reaction Sun Gear And Drum Assembly
    GM893331Courtesy of GENERAL MOTORS CORP.
  2. Install the reaction sun gear and drum assembly (678) into the case.
  3. Check that the lugs engage with the 1-2 support roller clutch inner race.
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