Ford 2003 Mustang Workshop Manual page 2712

14. Remove the fifth speed synchronizer retaining snap ring, the thrust washer (7G042), the reverse
brake ring (7M000), and the synchronizer blocking ring (7107).
15. Remove the fifth speed cluster gear (7144), the synchronizer blocking ring (7107), the
synchronizer assembly (7124), and the fifth gear shifter fork (7230) as an assembly.
16. Remove the reverse gearshift lever retaining clip.
17. NOTE: Do not remove the reverse gearshift lever (7K002) at this time.
Using a TORX® bit driver, remove the shift lever reverse pin (7K024).