4th Clutch Piston Travel Check

Fig 1: Measuring Piston Travel Between Fourth Clutch Backing Plate & Retainer Ring

Courtesy of GENERAL MOTORS CORP.

Using a feeler gage, measure the piston travel between the fourth clutch backing plate (524) and the fourth clutch backing plate retainer ring (523).

Piston Travel Specification:  Piston travel should be 1.016-2.540 mm (0.040-0.100 in).