Steel 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: Measuring Thickness Of 4-5 Clutch Steel Plate

Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

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

Measure the thickness of each 4-5-6 clutch steel plate (1) at dimension A.
Specification: The 4-5-6 clutch steel plate minimum thickness is 2.135 mm (0.0841 in).

Fig 2: Measuring Cone Of Clutch Steel Plate

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Check the steel plates for coning on a level surface.

Measure the cone of each 4-5-6 clutch steel plate (1) at dimension A.
Specification: The 4-5-6 clutch steel plate maximum cone is 0.240 mm (0.0094 in).