Ford 2003 Mustang Workshop Manual page 2778

12. Remove the starter motor.
13. Disconnect the OSS sensor electrical connector. Disconnect the wiring harness from the
transmission.
14. Remove the bolt and the clutch release lever cover.
15. CAUTION: To prevent component damage, do not depress the clutch pedal with the
transmission removed.
Disengage the clutch release cable from the clutch release fork.
16. Remove the clutch cable retainer and remove the clutch cable from the transmission.