With Full Time 4WD

Fig. 9 Installing seal slinger on outer axle shaft. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 10 Installing lip seal on outer axle shaft. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 11 Using pry bar to retain axle shaft. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Assembly & Installation

1. Apply RTV sealer or equivalent to seal surface of axle shaft.
2. Using driver, Tool No. C-4398-1, install seal slinger with lip toward splines onto outer axle shaft.
3. Carefully insert axle shaft into housing so as not to damage differential seal at side gears. After sliding axle shaft completely in, wedge a pry bar through universal joint to retain shaft.

Fig. 12 Using driving & adapter to install seal cup into knuckle. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 13 Tools in place after seal cup is installed. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 14 Tools positioned to press outer bearing onto hub. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 15 Forming a seal on bearing retainer face. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

Fig. 16 Bearing retainer positioned with grease fitting facing forward. 44 FBJ Units w/disc brakes. Models w/full time 4WD:

4. Install seal cup using adapter, Tool C-4398-2, and driver, Tool No. C-4398-1. Use a small amount of wheel bearing grease on adapter face to hold cup in position, then drive up until bottomed in knuckle. Do not remove tool at this time.
5. Using a suitable tool, install new outer seal in retainer plate, then locate retainer plate over hub of rotor.
6. Thoroughly pack wheel bearings with Multi-Purpose grease and press outer bearing onto hub using Tool No. C-4246-A and adapters. Remove tool and place grease coated outer bearing cup over bearing cone followed by spacer, grease coated inner bearing cup and inner bearing cone. Again use Tool No. C-4246-A and adapters to press components into position. Remove tool.
7. Apply a 1/4 inch bead of RTV sealer to retainer face on the chamfer. This replaces O-ring discarded during disassembly.
8. Carefully remove seal installing tool from knuckle bore so that outer axle shaft remains centered. If shaft is moved, be sure that lip seal is still riding inside cup. Correct if necessary.
9. Before assembling hub and rotor to knuckle, position bearing retainer in hub so that grease fitting is facing forward, if equipped. Using a crossing method, torque retainer plate bolts to 30 ft-lbs. Bearing retainers that have a grease fitting must be positioned on knuckle so that fitting is facing directly forward.
10. Install brake adapter and remove pry bar from universal joint.
11. Install axle shaft washer and nut. Torque nut to 100 ft-lbs, and continue to tighten nut until next slot in nut aligns with hole in axle shaft. Install cotter pin.
12. Through the access hole in hub, lubricate fitting in bearing retainer with multipurpose grease until grease flows through new inner seal. Seal may be viewed at the universal joint area. Spin hub several times and lubricate fitting again. Grease must flow from 1/2 of seal diameter.
13. Replace brake caliper assembly and wheel, then lower truck and test operation.