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Home >> Hummer >> 2007 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 1055 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Off-Vehicle Repair Instructions >> 1-2-3-4 & 3-5 Reverse Clutch Overhaul (6L90) >> 1-2-3-4 Clutch Plate Installation

1-2-3-4 Clutch Plate Installation

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of 1-2-3-4 Clutch Plate Assembly & Components
GM1822781Courtesy of GENERAL MOTORS CORP.
1-2-3-4 Clutch Plate Installation

Callout Component Name
1 1-2-3-4 Clutch (Waved) Plate
NOTE: Ensure an opening between the external splines of the waved plate is oriented with the missing snap ring groove punch in the housing. Failure to do so may cause damage to the clutch assembly.
2 1-2-3-4 Clutch Plate (Qty: 6)
NOTE: Ensure all clutch plates are centered in the housing. When installing the first steel clutch plate, ensure an opening between the external splines is oriented with the missing snap ring groove punch in the housing. Align the external splines of each remaining steel clutch plate with the first steel clutch plate. Failure to do so may cause damage to the clutch assembly.
3 1-2-3-4 Clutch Plate Assembly (Qty: 6)
4 1-2-3-4 Clutch Backing Plate
NOTE: Align the external splines of the backing plate with the external splines of the steel clutch plates. Failure to do so may cause damage to the clutch assembly.
5 1-2-3-4 Clutch Backing Plate Retaining Ring
NOTE: Depending on the housing configuration, align the retaining ring gap with the missing snap ring groove punch in the housing or the offset punch in the housing. Failure to do so may cause damage to the clutch assembly.

Tip:  After the retaining ring is installed, determine clutch piston travel in order to verify if the correct selective retaining ring is being used. Refer to 1-2-3-4 Clutch Backing Plate Retaining Ring Measurement .