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Home >> Pontiac >> 2008 >> Vibe Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 206 (Automatic Transmission - 4T80-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - Off Vehicle >> Driven Sprocket Support Assemble >> Assembly Procedure

Assembly Procedure

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Inspection Areas On Oil Transfer Sleeve
    GM762316Courtesy of GENERAL MOTORS CORP.
  1. Inspect the driven sprocket support (418) for the following:
    • Hub nicks, burrs, or damage
    • Plugged feed holes
    • Worn or damaged splines
    • Bushings for nicks, scratches, or wear
    • The checkball for movement
    • The seal ring grooves for damage
  2. Inspect the oil transfer sleeve (419) for scoring or internal damage. If damaged replace the driven sprocket support (418).
    3. Fig 2: Identifying Exhaust Valve Spring Inspection Points
    GM762296Courtesy of GENERAL MOTORS CORP.
  3. Inspect the following parts for damage:
    • The third clutch exhaust valve (427)
    • The exhaust valve spring (425)
    4. Fig 3: Locating Inspection Points On Sealing Rings & Scavenge Tube Seal
    GM11975Courtesy of GENERAL MOTORS CORP.
  4. Inspect the two sealing rings (423) and the two oil rings (422). Replace any damaged rings.
  5. Inspect the scavenge tube seal (53). If the seal is damaged, replace the seal.
    6. Fig 4: View Of Second Clutch Piston And Seal Assembly
    GM11976Courtesy of GENERAL MOTORS CORP.
  6. Inspect the second clutch piston and seal assembly (430). Inspect the second clutch spring and retainer assembly (428) for damage. Replace any damaged part.
    7. CAUTION: Do not roll the seals when installing the second clutch piston assembly (430), or damage may occur.
  7. Install the second clutch piston assembly (430). Twist and push the piston simultaneously. Use a light coating of J 36850:  assembly lubricant or equivalent.
    8. Fig 5: Compressing Second Clutch Spring Using J 39694
    GM11969Courtesy of GENERAL MOTORS CORP.
  8. Use the J 39694:  spring compressor to compress the spring and retainer assembly (428).
  9. Install the snap ring (429).
    10. Fig 6: Locating Third Clutch Exhaust Valve, Spring, And Pin
    GM762295Courtesy of GENERAL MOTORS CORP.
  10. Install the following parts:
    • The third clutch exhaust valve (427)
    • The third clutch exhaust valve spring (425)
    • The spring pin (424)
    11. Fig 7: Blowing Air Into Driven Sprocket Support
    GM762297Courtesy of GENERAL MOTORS CORP.
  11. Air check the second clutch piston by applying air through the driven sprocket support (418).
    12. Fig 8: Identifying Driven Sprocket Support
    GM762294Courtesy of GENERAL MOTORS CORP.
  12. Install the driven sprocket support (418-427) over the input shaft. When seated, the support will be flush with the case line surface.
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