Ford 2003 Mustang Workshop Manual page 2865

34. Remove the two remaining adapter-to-transmission case bolts, then remove the transmission
case and the front offset lever.
Slide the transmission case upward, off the mainshaft and shift rails. Hold the offset lever
against the guide plate to prevent the release of the dent ball and spring.
35. Remove the dent ball, spring and roll pin from the front offset lever.
36. Rotate the fifth/sixth and reverse shift levers from the shift interlock plate, then remove the
fifth/sixth and reverse shift rail assembly.