Disassembly and Assembly

NOTE: The removal and installation of the wheel bearing and hub from the steering knuckle is only to be done with the steering knuckle removed from the vehicle. Removal of the wheel bearing from the steering knuckle must be done using the following procedure.

DISASSEMBLY
1. Remove steering knuckle, hub, and wheel bearing as an assembly from the vehicle. Refer to Removal and Installation.











2. Using Remover, Special Tool 4150A, press one wheel mounting stud out of hub flange. Rotate the hub to align the removed wheel mounting stud with the notch in bearing retainer plate. Remove the wheel mounting stud from the hub.






3. Rotate the hub so the hole in the hub that wheel mounting stud was removed from is facing away from brake caliper lower rail on steering knuckle. Install one half of the Bearing Splitter, Special Tool 1130, between the hub and the bearing retainer plate.

NOTE: Align the threaded hole in this first half of the bearing splitter with the caliper rail on the steering knuckle.






4. Install the remaining pieces of Bearing Splitter, Special Tool 113O, on the steering knuckle. Hand tighten the nuts to hold bearing splitter in place on steering knuckle.






5. Once the bearing splitter in fully installed, be sure the three bolts attaching the bearing retainer plate to steering knuckle are contacting the bearing splitter. The bearing retainer plate should not support the steering knuckle or contact the bearing splitter.





6. Place the steering knuckle in an arbor press supported by the bearing splitter as shown.






7. Position Driver, Special Tool 6644-2, on the small end of the hub. Using the arbor press, remove the hub from the wheel bearing. The outer bearing race will normally come out of the wheel bearing when the hub is pressed out of the bearing.
8. Remove the bearing splitter from the steering knuckle.






9. Remove the three bolts mounting the bearing retainer plate to the steering knuckle. Remove the bearing retainer plate from the steering knuckle.






10. Place the steering knuckle back in the arbor press supported by press blocks as shown. The press blocks must not obstruct the bore in the steering knuckle so the wheel bearing can be pressed out of the steering knuckle. Place Bearing Driver, Special Tool MB-990799 on the outer race of wheel bearing. Press the wheel bearing out of the steering knuckle.






11. Install Bearing Splitter, Special Tool 1130, on the hub. The bearing splitter is to be installed on the hub so it is between the flange of the hub and the outer bearing race on the hub. Place the hub, bearing race and bearing splitter in an arbor press as shown. Place Driver, Special Tool 6644-2 on end of hub. Press the hub out of the outer bearing race.

ASSEMBLY
1. Wipe the bore of the steering knuckle clean of any grease or dirt with a clean, dry shop towel.






2. Place the new wheel bearing into the bore of the steering knuckle. Be sure the wheel bearing is placed squarely into the bore. Place the steering knuckle in an arbor press with Receiver, Special Tool C-4698-2, supporting the steering knuckle. Place Driver, Special Tool 5052, on the outer race of the wheel bearing. Press the wheel bearing into the steering knuckle until it is fully bottomed in the bore of the steering knuckle. Remove the knuckle front the press.

NOTE: Only the original or identical replacement bolts are to be used to mount the bearing retainer plate to the steering knuckle.






3. Install the bearing retainer plate on the steering knuckle. Install the three bearing retainer mounting bolts. Tighten the bearing retainer plate mounting bolts to a torque of 28 Nm (250 inch lbs.).






4. Place the previously removed wheel mounting stud back into the hub flange. Place the hub in the arbor press supported by Special Tool C-4698-1. Press wheel mounting stud into hub flange until it is fully seated against the back side on the hub flange. Remove the hub from the press.






5. Place the steering knuckle with the wheel bearing installed back in the arbor press with Receiver, Special Tool MB-990799 supporting the inner race of the wheel bearing as shown. Place the hub in wheel bearing making sure it is square with the bearing inner race. Press the hub into the wheel bearing until it is fully bottomed in the wheel bearing. Remove the knuckle from the press.
6. Install the steering knuckle assembly on the vehicle.