Wheel Hub: Service and Repair

DISASSEMBLY
- Before disassembly, jack up the front of vehicle and support frame with jack stands.
- Remove the disc brake caliper assembly and hang it on the frame with wires.

1. Bolt
- Before removal, shift transfer lever into "2H" position.
2. Cap
3. Snap Ring and Shim
4. Hub flange
5. Lock Washer and Lock Screw





6. Hub nut, using special tool, wrench J-36827 or equivalent.


7. Hub and Disc Assembly
8. Anti-Lock Brake system (ABS) Sensor Ring (if so equipped).
9. Outer Bearing Outer Race
10. Oil Seal
11. Inner Bearing Outer Race





12. Bolt.
- If necessary, replace the wheel pin in the following manner:
a. Apply a scribe mark to disc to hub.
b. Clamp the hub and disc assembly in a vise, using protective pads. Remove the six disc-to-hub retaining bolts.





13. Wheel Pin.
- Place hub on a suitable work surface and remove the when studs, as required, using a hammer.

INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear, damage, corrosion or any other abnormal condition are found through inspection. Check the following parts:
- Hub
- Hub bearing oil seal
- Knuckle spindle
- Disc
- Caliper
- Shift on the fly system parts (Cap, Hub flange, Shim, Snap ring)
- ABS sensor ring (If so equipped)

ASSEMBLY





1. Wheel Pin (13), as follows:
a. Place the hub on a wood workbench or a block of wood approximately 6" by 6" to protect the wheel stud ends and threads.
b. Insert a wheel stud using a hammer. Be sure the wheel stud is started squarely and seats completely.





2. Bolt (12)
- Align scribe marks and attach the hub to the
- Tighten the bolts to the specified torque.
Torque: 103 Nm (76 ft. lbs.)





3. Inner Bearing Outer Race (11)
- Install the outer race inner bearing by driving it into the hub, using special tools installer J-36829 and grip J-8092 mor equivalents.





4. Outer Bearing Outer Race (9)
- Install the outer race; outer bearing by driving.





5. Oil Seal (10)
- Apply grease (Besco L-2 or equivalent) to the lip portion, using special tools installer J-36830 and grip J-8092 or equivalents.
5. Anti-Lock Brake System (ABS) Sensor Ring (if so equipped) (8).
- Tighten the bolts to the specified torque.
Torque: 18 Nm (13 ft. lbs.).





6. Hub and Disc Assembly (7), as follows:
a. Apply grease in the hub.
b. Apply wheel bearing type grease NLGI No. 2 or equivalent to the other and inner bearing.
Grease Amount:
Hub: 35 g (1.23 ounce)
Outer bearing: 10 g (0.35 ounce)
Inner bearing: 15 g (0.53 ounce)





7. Hub Nut (6)
- Turn the place where there is a chamfer in the tapped hole to the outer side, and attach the nut.

Preload Adjustment





Tighten the hub nut to 29 Nm (22 ft. lbs.), then fully loosen the nut. Tighten the hub nut to the value given below. using a spring scale on the wheel pin.
Bearing Preload:
New bearing and New oil seal: 20 - 25 N (4.4 - 5.5 lbs.).
Used bearing and New oil seal: 12-18 N (2.6- 4.0 lbs.).
If the measured bearing preload is outside the specifications, adjust it by loosening or tightening the bearing nut.





8. Lock Washer and Lock Screw (8).
Turn the side with larger diameter of the tapered bore to the vehicle outer sided and attach the washer. If the bolt holes in the lock plate are not aligned with the corresponding holes in the nut, reverse the lock plate. If the bolt holes are still out of alignment, turn in the nut just enough to obtain alignment. Screw is to be fastened tightly so its head may come lower than the surface of the washer.
9. Hub flange (4)
- Apply adhesive (LOCTITE 515 or equivalent) to both joining faces.





10. Snap Ring and Shim (3)
- Adjust the clearance between the freewheeling hub body and the snap ring.
Clearance: 0-0.3 mm (0-0.012 inch)
Shims Available: 0.2, 0.3, 0.5,1.0 mm (0.008, 0.012, 0.020, 0.039 inch)
11. Hub cap (2)
12. Bolt (1)
- Tighten the bolts to the specified torque.
Torque: 59 Nm (43 ft. lbs.).