4-5-6 Clutch Backing Plate Retaining Ring Measurement

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Measuring 4-5-6 Clutch Backing Plate Retaining Ring

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedures Install the clutch assembly into a hole in the workbench Zero out the dial indicator on the DT 47868-1: pack travel weight. Special Tools DT 47868-1: Pack Travel Weight J 8001: Dial Indicator Set J 26900-13: Magnetic Base For equivalent regional tools, refer to Special Tools .
1	4-5-6 Clutch Apply Passage Tip: While using one finger to block the top passage hole on the turbine shaft, apply compressed air to the opposite top passage hole, and observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L80) or Clutch Backing Plate Retaining Ring Specifications (6L90) to determine the correct retainer.

Callout

Component Name

Preliminary Procedures

Install the clutch assembly into a hole in the workbench
Zero out the dial indicator on the DT 47868-1: pack travel weight.

Special Tools

DT 47868-1: Pack Travel Weight
J 8001: Dial Indicator Set
J 26900-13: Magnetic Base

For equivalent regional tools, refer to Special Tools .

4-5-6 Clutch Apply Passage
Tip: While using one finger to block the top passage hole on the turbine shaft, apply compressed air to the opposite top passage hole, and observe the dial indicator measurement. Refer to Clutch Backing Plate Retaining Ring Specifications (6L80) or Clutch Backing Plate Retaining Ring Specifications (6L90) to determine the correct retainer.