Low and Reverse Clutch Plate Inspection

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: View Of Low & Reverse Clutch Plate Measurements

Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Perform the following measurements at 3 or more locations.
Check the plates for coning on a level surface.
Replace any parts not meeting specifications.

Measure the thickness of each low and reverse clutch fiber plate (1) at dimension A.
Specification: The low and reverse clutch fiber plate minimum thickness is 2.375 mm (0.0935 in).
Measure the oil groove depth of each low and reverse clutch fiber plate (1) at dimension B.
Specification: The low and reverse clutch fiber plate minimum groove depth is 0.200 mm (0.0079 in).

Fig 2: Checking Low & Reverse Clutch Fiber Plate Cone

Courtesy of GENERAL MOTORS CORP.

Measure the cone of each low and reverse clutch fiber plate (1) at dimension A.
Specification: The low and reverse clutch fiber plate maximum cone is 0.225 mm (0.0089 in).

Fig 3: Measuring Low & Reverse Clutch Steel Plate Thickness

Courtesy of GENERAL MOTORS CORP.

Measure the thickness of each low and reverse clutch steel plate (1) at dimension A.
The minimum thickness is listed in Selective Components Specifications .