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Home >> Pontiac >> 2009 >> G8 Base >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 5L40-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Input Sun Gear Shaft Assemble

Input Sun Gear Shaft Assemble

    Fig 1: Input Sun Gear Shaft Inspection Areas
    GM801877Courtesy of GENERAL MOTORS CORP.
  1. Inspect the outer race and input shaft for the following:
    • Damaged or worn splines
    • Scoring inside the diameter of the race
    • Wear or cracks
  2. Inspect the sprag elements for flat spots.
  3. Inspect the bearing cage for distortion or broken ribbon tabs.
  4. Inspect the inner bearing for cracks.
    5. Fig 2: Locating Inner Roller Bearing & Inner Race Thrust Ring
    GM801875Courtesy of GENERAL MOTORS CORP.
  5. Install the inner roller bearing (456).
  6. Install the NEW inner race thrust ring (455).
    7. Fig 3: View Of Sprag Assembly
    GM801874Courtesy of GENERAL MOTORS CORP.
  7. Install the outer race washer (458) onto the outer race (459).
  8. Install the rataining rings (460) and the forward clutch sprag (461) onto the outer race (459).
  9. Install the sprag assembly (460, 461 and 459) onto the sun gear shaft (457).
    10. Fig 4: Checking Forward Clutch Sprag Rotation
    GM801879Courtesy of GENERAL MOTORS CORP.
  10. Check that the forward clutch sprag rotation freewheels and locks up in the correct direction.
    11. Fig 5: View Of Input Sun Gear Shaft
    GM801810Courtesy of GENERAL MOTORS CORP.
  11. Install the input sun gear shaft (8) into the case (24).
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