Overrun Clutch Piston Travel Check
WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
Using a feeler gage, measure the piston travel between the overrun clutch backing plate (510) and the overrun clutch backing plate retainer ring (511).
Piston Travel Specification: Piston travel should be 0.838-2.38 mm (0.033-0.094 in).