Ford 2003 Mustang Workshop Manual page 2881

8. Install the second gear synchronizer thrust washer, the inner cone, the friction cone and the
second gear synchronizer blocking ring.
Align the blocking ring tabs with the second gear slots.
9. Install the first/second gear synchronizer assembly. Position the output shaft with the output end
facing downward. Using the special tools, press the first/second gear synchronizer assembly
into place.
Install the synchronizer with the groove on the sleeve facing first gear.
Stop press operation before keys engage the blocking ring slots. Lift and rotate the
second gear and the blocking ring until the keys are seated in the blocking ring.