GM Service Manual Online
For 1990-2009 cars only

    Object Number: 164278  Size: SH
  1. Remove the 1 bolt and the second coast brake apply pipe bracket (2) from the transaxle case (1).

  2. Object Number: 164281  Size: SH
  3. Remove the 2nd coast brake apply pipe (1) from the transaxle case (2).

  4. Object Number: 164284  Size: SH
  5. Place a reference mark (1) on the 2nd coast brake piston rod (2) where the piston rod meets the transaxle case.

  6. Object Number: 164287  Size: SH
  7. Apply 392-785 kPa (57-114 psi) of compressed air into the 2nd coast brake apply passage (2).
  8. Measure the distance between the reference mark and the transaxle case using a feeler gage (1) to obtain the 2nd coast brake piston stroke.
  9. • The 2nd coast brake piston stroke should fall within 1.5-3.5 mm (0.059-0.138 in) (3)
    • If the 2nd coast brake piston stroke exceeds specification, inspect the 2nd coast brake band for excessive wear or damage

    Object Number: 164324  Size: SH
  10. Remove the 2nd coast brake servo cover snap ring (1) from the transaxle case.
  11. Important: When using compressed air to remove components, air pressure should not exceed 98 kPa (14psi).


    Object Number: 164327  Size: SH
  12. Remove the following components from the transaxle case (2) by slowly applying low pressure compressed air into the 2nd coast brake servo apply passage (1):
  13. • The 2nd coast brake servo cover
    • The 2nd coast brake piston
    • The 2nd coast brake piston outer return spring

    Object Number: 164334  Size: SH
  14. Remove the forward and direct clutch assemblies (3, 2) from the transaxle case by grasping the input shaft (1) and lifting the shaft upward.

  15. Object Number: 415828  Size: SH
  16. Remove the 2nd coast brake band anchor pin (2) from the transaxle case (1).

  17. Object Number: 415829  Size: SH
  18. Remove the 2nd coast brake band from the transaxle case (1).