Ford 2003 Mustang Workshop Manual page 2532

2. Install the clutch piston outer seal so that when the piston is installed the sealing lip points
toward the bottom of the cylinder.
3. NOTE: Coat the inner and outer direct clutch piston seals, clutch cylinder sealing area and
piston inner sealing area with petroleum jelly.
Using the special tool, install the direct clutch piston.
4. Install the piston return spring and retainer assembly.
5. Using the special tool, compress the piston return spring and install the retaining ring.
6. NOTE: Before assembly, soak new clutch discs in clean automatic transmission fluid for 15
minutes.
Install the clutch pack retaining ring.
1. Alternate external spline (steel) plates and internal spline (friction) plates, starting with a
steel plate and ending with the friction plate.
2. Install the clutch pack retaining ring.