Ford 2003 Mustang Workshop Manual page 2875

2. Remove the first gear needle bearing.
Inspect the needle bearing for wear or damage. Install a new needle bearing as
necessary.
3. Remove and discard the snap ring.
4. Remove the first gear synchronizer thrust washer, the inner cone, the friction cone and the first
gear synchronizer blocking ring.
Inspect all components for wear or damage. Install new components as necessary.