F 250 4WD Super Duty V10-6.8L VIN Z CNG (2003)
13. Inspect the splines for wear, cracking and distortion from twisting.
14. Inspect the axle flange O-ring.
15. Clean the axle housing interior, the axle and carrier housing sealing surfaces, and the carrier mounting bolt hole threads. Inspect the housing for
stripped and damaged threads and bending fatigue.
16. If carrier disassembly is necessary, refer to Differential Case and Ring Gear.
Installation
1. CAUTION: The gasket material must cure for one hour before filling the axle with lubricant.
Apply a continuous bead of Ford Gasket Maker F8AZ-19B508-AB or equivalent meeting Ford specification WSK-M2G348-A5 onto the axle
housing mounting flange and around each bolt hole.
