Wheel Hub: Adjustments

REAR

BEARING PRELOAD
1. Make sure the parking brake is fully released.
2. Raise vehicle.
3. Remove wheel and tire assembly.
4. Rotate the brake rotor to make sure there is no brake drag. If the brakes drag, press on inner brake pad to push caliper piston back slightly.
5. Remove the grease cap.

Raise The Stacked Portion Of The Locknut:

6. Carefully raise the staked portion of the locknut using a small cape chisel.
7. Remove and discard the locknut.

NOTE: The locknuts are threaded left and right. The LEFT HAND threaded locknut is located on the RIGHT HAND side of the vehicle. Turn this locknut CLOCKWISE to LOOSEN. The RIGHT HAND threaded locknut is turned COUNTERCLOCKWISE to LOOSEN.

8. Install a new locknut.

Tightening The Locknut:

9. Seat the bearings by tightening the locknut to 25-29 N.m (18-21 lb-ft). While tightening the locknut ROTATE the brake rotor.
10. Loosen the locknut slightly until it can be turned by hand.

Measuring Seal Drag:

11. Before bearing preload can be set, the amount of seal drag must be measured and added to the required preload.
To measure seal drag, place a N.m(lb-in) torque wrench onto a lug nut positioned at 12 O'CLOCK and measure the amount of force required to ROTATE the brake rotor. PULL the torque wrench and note the reading when rotation STARTS.
12. To determine the specified preload, add the amount of seal drag to the required preload which is 0.15-0.49 N.m(1.3-4.3 lb-in).
For example: If seal drag measures 0.25 N.m(2.2 lb-in), this amount must be ADDED to the required preload:
a. 0.15 N.m + 0.25 N.m =0.40 N.m MINIMUM.
b. (1.3 lb-in + 2.2 lb-in = 3.5 lb-in MINIMUM).
c. 0.49 N.m + 0.25 N.m =0.74 N.m MAXIMUM.
d. (4.3 lb-in + 2.2 lb-in = 6.5 lb-in MAXIMUM).
In the above example, when the seal drag is ADDED the specified amount of preload becomes 0.40 to 0.74 N.m (3.5 to 6.5 lb-in). 13. Tighten the wheel bearing locknut a slight amount.

Measuring Seal Drag:

14. Place the N.m (lb-in) torque wrench onto a lug nut positioned at 12 O'CLOCK and measure the amount of PULL required to ROTATE the brake rotor.
Continue tightening the attaching nut until the specified amount of preload is measured with the torque wrench.

Stake The New Lock Nut:

15. Stake new locknut using a cold chisel with the cutting edge rounded as shown.

CAUTION: If the nut splits or cracks after staking, It must be replaced with a new nut.

16. Install the grease cap.
17. Install the wheel and tire assembly.
18. Lower vehicle.
19. Tighten the wheel lug nuts to 90-120 N.m (67-88 lb-ft).