GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 Savana 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 1-2-3-4 Clutch Piston Inspection

    Object Number: 1217150 Size: SH

    Important: Replace the 1-2-3-4 clutch piston housing if the housing is damaged or does not meet specifications.

  1. Inspect 1-2-3-4 clutch housing piston (1) for damage.
  2. Make sure the 1-2-3-4 clutch piston housing check ball (2) moves freely and has a minimum of 1.0 mm (0.04 in) travel parallel to the centerline of the 1-2-3-4 clutch piston housing.