Ford 2003 Mustang Workshop Manual page 2530

does not slide freely on the serrations or that is not flat.
12. Check the clutch hub thrust surfaces for scores and clutch hub splines for wear.
13. Remove the direct clutch pack.
1. Remove the selective retaining ring.
2. Remove the direct clutch pack.
14. Using the special tool, compress the piston return spring and remove the snap ring.
15. WARNING: Wear safety glasses when using compressed air.
NOTE: If necessary, use regulated compressed air 207 kPa (30 psi) max pressure to remove
the clutch piston.
Remove the support and spring assembly and piston.