Ford 2003 Mustang Workshop Manual page 2917

23. Apply threadlock and sealer to the threads of the shift lever guide bolts, then install the bolts.
Pull up on the fifth/sixth shift rail to align the slot of the interlock plate with the guide bolt
hole.
24. Install a new front offset lever roll pin.
Install the pin until it is flush with the lever.
25. Apply threadlock and sealer to the threads of the shift dent, then install the shift detent
assembly.