Fiber 4-5-6 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: Identifying Fiber Clutch Plate Measurement Locations

Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Measure as described below at a minimum of 3 locations.
Replace any 4-5-6 clutch fiber plate that does not meet specifications.

Measure the thickness of each 4-5-6 clutch fiber plate (1) at dimension A.
Specification: The 4-5-6 clutch fiber plate minimum thickness is 2.375 mm (0.0935 in).
Measure the 4-5-6 clutch fiber plate oil groove depth of each plate at dimension B.
Specification: The 4-5-6 clutch fiber plate minimum groove depth is 0.200 mm (0.0079 in).