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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1663 (Automatic Transmission - 6L45/6L50/6L80/6L90 - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> 4-5-6 Clutch Dampener Overhaul (6L50/80/90)

4-5-6 Clutch Dampener Overhaul (6L50/80/90)

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: 4-5-6 Clutch Dampener (6L50/80/90)
GM1555318Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 4-5-6 Clutch Dampener Retaining Ring
CAUTION: Ensure the retaining ring is fully seated when installed. Using a screwdriver, fully seat the retaining ring into the groove by pushing on the inside diameter around the whole circumference. If the retaining ring is not fully seated, transmission damage will result.
2 4-5-6 Clutch Dampener Apply Plate
3 4-5-6 Clutch Dampener
Tip:  Dry and inspect the clutch dampener for the following conditions:
  • Pitting
  • Flaking
  • Delamination
  • Wear
  • Glazing
  • Cracking