F 450 4WD Super Duty V10-6.8L VIN D (2004)
22. With the drive pinion at the correct preload as determined earlier in this procedure, remove and discard the lock nut and the washer.
23. Using the special tool, remove the pinion flange.
24. Coat the pinion seal rubber lips with lubricant.
25. Using the special tool, install the pinion seal.
After installation, verify that the garter spring did not pop out of the seal. If the garter spring popped out, install a new pinion seal.
26. Coat the inside of the pinion flange with a small amount of lubricant.
27. Using the special tool, install the pinion flange.
28. CAUTION: Always install a new washer and lock nut.
Install the new washer and lock nut.
29. Carry out the Ring Gear and Pinion Backlash procedure in the General Procedures portion.
30. Assemble the differential bearing cups to the differential bearings.
