GM Service Manual Online
For 1990-2009 cars only

    Object Number: 181670  Size: SH
  1. Assemble the spring seat (160) and the cushion spring (161) onto the adjusting sleeve (158).
  2. Insert the adjusting sleeve (158) into the servo piston (162).
  3. Place the servo piston into a press. Compress the cushion spring (161).
  4. Install the cushion spring retainer ring (159).
  5. Install the adjusting screw (164) into the adjusting sleeve (158).
  6. Install the lock nut (165). Do not tighten the lock nut.

  7. Object Number: 181671  Size: SH
  8. Install the piston seal ring.