GM Service Manual Online
For 1990-2009 cars only

Tools Required

[LINK: J 37839 Pushrod Height Gauge


    Object Number: 913  Size: SH
  1. Gage the piston rod using [LINK: J 37839 Pushrod Height Gauge]
  2. Check the maximum and minimum rod lengths.

  3. If the piston rod is not within allowable limits, obtain a service-adjustable piston rod and adjust the rod to the correct height.