Ford 2003 Mustang Workshop Manual page 3197

7. Using the special tool, install the A/C disc and hub assembly retaining bolt.
8. Measure and adjust the clutch air gap by removing or adding A/C clutch hub spacers.
9. Install the A/C compressor. For additional information, refer to Air Conditioning (A/C)
Compressor—3.8L or Air Conditioning (A/C) Compressor—4.6L in this section.