Automatic Locking Hub
DISASSEMBLY1. Remove outer bearing and outer race from hub.
2. Remove oil seal, then using a drift, remove outer bearing race then the inner bearing.
3. Apply a scribe mark to both rotor and hub, then remove six rotor to hub retaining bolts.
4. Using a hammer, remove wheel studs as required.
ASSEMBLY
1. Install wheel studs if removed.
2. Align scribe marks on hub and rotor then install six retaining bolts and torque to 76 ft. lbs.
3. Using tools J-36828 and J-8092 or equivalent, install outer race.
4. Repeat step 3 for installation of outer bearing and outer race.
5. Install inner bearing, then using tools J-36828 and J-8092 or equivalent, install oil seal.
6. Coat inner hub with grease, then apply Besco L-2 or equivalent to inner and outer bearing.
7. Turn hub so chamfer is aligned to the tapped hole on outer side, then using tool J-36827 or equivalent, install hub nut.
8. Using a spring scale, adjust bearing preload to 3.31 lbs.
9. Install lock washer with larger diameter of the tapered bore to the vehicle. If bolt holes in the lock plate are not aligned with the corresponding holes in the nut, reverse the lock plate. If bolt holes are still out of alignment, turn nut enough to obtain alignment. Ensure screw is fastened tightly so head is lower than surface of washer.
10. With transfer lever still in the ``2H'' position, install inner cam with cam gear facing out.
11. Lower vehicle from hoist, then support lower link with floor jack placing axle in normal position.
Fig. 17 Exploded View Of Automatic Locking Hub:
Fig. 18 Measuring axle shaft snap ring clearance:
12. Install tool J-36836 to axle shaft by tool J-36835-2 or equivalent, Fig. 17, then measure clearance ``t'' Fig. 18, between tool and snap ring groove of axle shaft using a feeler gauge.
13. Clearance should be .0039. If clearance is larger than specified, select proper shim to meet specification.
14. Remove tool J-36836 and ensure inner cam stays in place. If inner cam is removed, repeat steps 10-13.
Fig. 19 Application of drive clutch assembly lubricant (Part 1 of 2):
Fig. 19 Application of drive clutch assembly lubricant (Part 2 of 2):
Fig. 20 Installation of axle snap rings & shims:
15. Apply multipurpose grease or bearing grease to portions of clutch assembly as shown in Fig. 19, then align cut part of drive clutch assembly with the concave part of inner cam.
16. Engage cam teeth of drive clutch assembly to that of the inner cam by turning axle shaft.
17. Install snap ring and shims as follows:
a. Install tool J-36835-2 or equivalent, to axle Fig. 20.
b. Install snap ring to snap ring tool.
c. Install tool driver J-36835-1 or equivalent.
d. Pull axle shaft out by pulling tool J-36835-2 and install snap ring to axle by pushing tool J-36835-1, then remove tool. Ensure snap ring is fitted correctly.
18. Install housing assembly, hub cap and retaining bolts and torque to 43.4 ft. lbs.