Ford 2003 Mustang Workshop Manual page 2737

1. Using the special tool and a press, remove the countershaft bearing assembly (7F431).
2. CAUTION: Failure to correctly support the case (7005) during bearing race removal
will result in permanent distortion of the case.
NOTE: Remove the front countershaft bearing race only if damaged or worn.
Using the special tools and a press, remove the bearing race and the countershaft front bearing
seal (7693).
Assembly
NOTE: Position the countershaft in the transmission case before installing the rear countershaft
bearing.
1. Install the countershaft front bearing seal on the bearing race.
2. Coat the outside diameter of the bearing race with sealer.
Use Threadlock and Sealer E0AZ-19554-AA or equivalent meeting Ford specification
WSK-M2G351-5A.