GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1997 🢒 GMC K Pickup - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Forward Clutch Assembly Assemble

Tools Required

    • J 21362-1 Forward Clutch Piston and Inner Seal Protector
    • J 38732-1 Forward Clutch Piston and Outer Seal Protector
    • J 23327 Clutch Spring Compressor
    • J 25018-A Clutch Spring Compressor Adapter
    • J 36850 Assembly Lubricant

    Object Number: 54653 Size: SH
  1. Lubricate the forward clutch piston seal with DEXRON® III transmission fluid.
  2. Lubricate the forward clutch piston inner sleeve and seal assembly seal with DEXRON® III transmission fluid.
  3. Install the J 21362-1 over the forward clutch housing hub.
  4. Place the forward clutch piston (606) inside the J 38732-1 and insert the assembly into the forward clutch housing assembly (602).
  5. Push down on and slightly rotate the forward clutch piston (606) until it is seated.
  6. Remove the tools.

    7. Object Number: 31075 Size: SH
  7. Install the forward clutch spring assembly (607).
  8. Compress the forward clutch spring assembly (607) using the J 23327 and the J 25018-A .
  9. Install the forward clutch spring retainer ring (608).
  10. Remove the tools.

    11. Object Number: 54657 Size: SH
  11. Dip the forward clutch plates in DEXRON® III transmission fluid.
  12. Install the forward clutch apply plate (waved) (609).
  13. Install the steel and composite forward clutch plates (610, 611). Alternate the clutch plates, starting with the steel clutch plate (5 steel and 5 composite).

    14. Important: The forward clutch hub and the forward clutch housing thrust washer should not be installed at this time. This will allow easier access in order to perform the forward clutch piston travel check.

  14. Install the direct clutch hub (615).
  15. Install the direct clutch hub retainer ring (616).