Ford 2003 Mustang Workshop Manual page 342

Remove the axle shafts. For additional information, refer to
3. Wipe the lubricant from the internal working parts and inspect the parts for wear and damage.
4. Rotate the differential assembly to check for roughness indicating bearing/gear damage.
5. Using a suitable dial indicator and the special tool, measure and note the ring gear backface
runout.
6. CAUTION: Mark the position and location of the bearing caps, as the arrows may
not be visible. Always install the bearing caps in their identical locations and positions.
Remove the bearing caps.
1. Remove the bolts.
2. Remove the bearing caps.
7. WARNING: Do not allow the differential assembly to fall. Failure to follow these
instructions may result in personal injury and component damage.
CAUTION: Place a wood block between the pry bar and the differential housing
Axle Shaft in this section.