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Engage the emergency brake. Place the socket end of the tire wrench over the lug nuts and turn 45 degrees to break the nuts loose. Do not unseat the wheel from the wheel hub.
2Jack the Sentra into the air using the factory front jack point. This is located behind the radiator.
Finish loosening the lug nuts and remove the wheel.
4Unbolt the upper and lower caliper mounting bolts and lift the caliper off the brake rotor.
5Secure the brake caliper to the coil springs above the brake system with zip ties.
6Slide the brake rotor off the hub assembly.
7Remove the bearing cap on your Sentra. To do this, you need to use channel locks. Grab the bearing cap with the end of the channel locks. Then, twist the channel locks back and forth. You will eventually be able to loosen the bearing cap so that you can pull it off.
8Grab the end of the cotter pin on the spindle nut with pliers and pull it out of the nut. You may need to pull fairly hard, but the pin will come out.
9Turn the spindle nut counterclockwise to remove the spindle nut.
10Tap the wheel bearing out of place with a rubber mallet or a hammer.
11Tap the bearing races out of the hub with a hammer and punch tool. You need to do this for both sides of the hub.
12Clean the inside of the hub, the spindle, as well as the spindle nut brake parts cleaner and wipe them dry with a clean rag.
13Install the new wheel bearing. Tap the new bearing into the hub using a rubber mallet. Make sure you are using a rubber mallet so that you do not damage the new bearing.
14Reassemble the hub assembly, brake assembly, and put the wheel back on and tighten the lug nuts so that the wheel sits flush against the wheel hub. Installation is the reverse of removal.
15Lower the Sentra to the ground and set the dial on a torque wrench to 100 lb-ft. Tighten the lug nuts clockwise until the wrench clicks. This will indicate that the proper torque value has been reached.
Most newer cars have a bearing that is pressed in to the hub. In order to do the repair you should have to replace the entire hub. This is actually easier and cleaner because the bearings are lubed, sealed and pressed in the hub. They usually cost around $30 and should be available through your local parts store. In most cases the hub is held on by a large nut so I recommend that you make sure you have a socket that is large enough.
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.
to remove the hub and bearing assy. you need to remove the tire and wheel, brakes, cv axle, then unbolt the lower ball joint, and remove the lower strut mounting bolts. I believe theirs two on this model after removing the hub & bearing assembly the hub must be removed by using a hydraulic press to press the hub from inside the bearing as they are a machined fit. then typically there is a large snap ring holding the bearing into its bore that needs to be removed before the bearing can be pressed out at the hydraulic press install is reverse of removal.
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