Ford 2003 Mustang Workshop Manual page 2733

13. Install the output shaft rear bearing.
14. Lubricate the splines of the fifth speed driven gear with petroleum jelly.
15. CAUTION: Align the output shaft splines and the splines of the fifth speed driven
gear or damage will occur.
Position the fifth speed driven gear on the output shaft. Using a press and a capped length of
pipe 31.7 mm (1.26 in) inside diameter X 356 mm (14.24 in) long, install the fifth speed driven
gear.
16. Install the snap ring.