GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1997 🢒 GMC K Pickup - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Manual 2-1 Band Servo Assembly Disassemble

    Object Number: 31231 Size: SH
  1. Remove the manual 2-1 band servo piston pin retainer ring (56).
  2. Remove the manual 2-1 band servo piston pin (55).
  3. Remove the manual 2-1 band servo piston seal (57).
  4. Inspect the manual 2-1 band servo piston (58) for porosity, wear and seal ring groove damage.
  5. Inspect the manual 2-1 band servo piston pin (55) for wear and damage.