Assembly

ASSEMBLY





NOTE: The 48RE transmission uses five plates and discs for the front clutch.

1. Soak clutch discs in transmission fluid.
2. Install new inner piston seal onto the outer diameter of the clutch retainer inner hub.
3. Install new outer seal onto the clutch piston. Be sure seal lips of both seals face the interior of the retainer.
4. Lubricate new inner and outer piston seals with petroleum jelly.
5. Install clutch piston in retainer. Use twisting motion to seat piston in bottom of retainer. A thin strip of plastic (about 0.015 - 0.020 in. thick), can be used to guide seals into place if necessary.

CAUTION: Never push the clutch piston straight in. This will fold the seals over causing leakage and clutch slip. In addition, never use any type of metal tool to help ease the piston seals into place. Metal tools will cut, shave, or score the seals.

6. Install and position nine clutch piston springs (1).




48RE Front Clutch Components






7. Install spring retainer (3) on top of piston springs (9).
8. Compress spring retainer and piston springs with Spring Compressor C-3863-A.
9. Install spring retainer snap-ring (8) and remove compressor tool.
10. Install clutch plates and discs (4, 7). Five clutch discs, five steel plates and one reaction plate are required.
11. Install reaction plate (6) followed by waved snap-ring (5).




12. Check clutch pack clearance with feeler gauge (3). Clearance between waved spring and pressure plate should 2.5-4.09 mm (0.098-0.161 in.). If clearance is incorrect, clutch plates, clutch discs, snap-ring, or pressure plate may have to be changed.