NOTE: After the wheel bearings have been removed or replaced or the front axle has been reassembled be sure to adjust wheel bearing preload. Refer to the Adjustment service procedure below. On the 1989–92 240SX there is just one wheel bearing, pressed into the hub and no adjusting cap. Refer to the exploded views of the Front Axle Hub Assembly. Review the complete service procedure.
Raise and support the vehicle safely.
Remove the front wheels and the brake caliper assemblies.
NOTE: Brake hoses do not need to be disconnected from the brake caliper assemblies. Make sure the brake hoses are secure and do not let caliper assemblies hang unsupported from the vehicle.
Work off center hub cap by using thin tool. If necessary tap around it with a soft hammer while removing.
Pry off cotter pin and take out adjusting cap and wheel bearing lock nut.
Remove wheel hub with disc brake rotor from spindle with bearings installed. Remove the outer bearing from the hub.
Remove inner bearing and grease seal from hub using long brass drift pin or equivalent.
If it is necessary to replace the bearing outer races, drive them out of the hub with a brass drift pin and mallet.
Install the outer bearing race with a tool (KV401021S0 special tool number) until it seats in the hub flush.
NOTE: Place a large glob of grease into the palm of one hand and push the bearing through it with a sliding motion. The grease must be forced through the side of the bearing and in between each roller. Continue until the grease begins to ooze out the other side through the gaps between the rollers. The bearing must be completely packed with grease.
Pack each wheel bearing with high temperature wheel bearing grease. Pack hub and hub cap with the recommended wheel bearing grease up to shaded portions. Refer to the illustration.
Install the inner bearing and grease seal in the proper position in the hub.
Install the wheel hub with disc brake rotor to the spindle.
Install the outer wheel bearing, lock washer, wheel bearing lock nut, adjusting cap, cotter pin (always use a new cotter pin and O-ring for installation after adjustment), spread cotter pin then install the O-ring and dust cap.
Install the brake caliper assemblies and bleed brakes if necessary. Install the front wheels.
Raise vehicle, remove wheel, remove brake caliper, remove brake rotor remove steering knuckle by disconnecting the tie rod, ball joint, and strut. press out hub, remove snap rings press out bearing. Reassemble in reverse order.
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Not sure of your exact vehicle as I have not had to work on one, but usually the wheel speed sensor is interchangeable from side to side, but not front to back.
NOTE: After the wheel bearings have been removed or replaced or the front axle has been reassembled be sure to adjust wheel bearing preload. Refer to the Adjustment service procedure below. On the 1989–92 240SX there is just one wheel bearing, pressed into the hub and no adjusting cap. Refer to the exploded views of the Front Axle Hub Assembly. Review the complete service procedure.
Raise and support the vehicle safely.
Remove the front wheels and the brake caliper assemblies.
NOTE: Brake hoses do not need to be disconnected from the brake caliper assemblies. Make sure the brake hoses are secure and do not let caliper assemblies hang unsupported from the vehicle.
Work off center hub cap by using thin tool. If necessary tap around it with a soft hammer while removing.
Pry off cotter pin and take out adjusting cap and wheel bearing lock nut.
Remove wheel hub with disc brake rotor from spindle with bearings installed. Remove the outer bearing from the hub.
Remove inner bearing and grease seal from hub using long brass drift pin or equivalent.
If it is necessary to replace the bearing outer races, drive them out of the hub with a brass drift pin and mallet.
Install the outer bearing race with a tool (KV401021S0 special tool number) until it seats in the hub flush.
NOTE: Place a large glob of grease into the palm of one hand and push the bearing through it with a sliding motion. The grease must be forced through the side of the bearing and in between each roller. Continue until the grease begins to ooze out the other side through the gaps between the rollers. The bearing must be completely packed with grease.
Pack each wheel bearing with high temperature wheel bearing grease. Pack hub and hub cap with the recommended wheel bearing grease up to shaded portions. Refer to the illustration.
Install the inner bearing and grease seal in the proper position in the hub.
Install the wheel hub with disc brake rotor to the spindle.
Install the outer wheel bearing, lock washer, wheel bearing lock nut, adjusting cap, cotter pin (always use a new cotter pin and O-ring for installation after adjustment), spread cotter pin then install the O-ring and dust cap.
Install the brake caliper assemblies and bleed brakes if necessary. Install the front wheels.
The bearings in your car are pressed into a hub. If the part is available as an assembly, it can be replaced that way. Generally on a front drive car: Remove wheels and brake calipers If it is pressed in: remove the rotors, disconnect the drive shafts and remove the steering knuckle. Then the old bearing is pressed out and the new one pressed in with a machine shop press. If the bearing is part of the hub, that will be unbolted and the new one swapped.
On a scale of 1-10 difficulty, Id rate it a strong 7
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