To remove and install front wheel bearing and to adjust the preload on rears when the car is on the rear wheel drive, the procedure involves removal of the caliper assembly, which can be left with the hydraulic line and attached to the underbody in case the complete removal is not required. Then remove the disc run-out, verify the run-out, then remove the cotter pin, nut lock, adjusting nut and washer of the spindle, thrust washer and outer bearing of the hub. Removing the brake disc/wheel hub assembly off the spindle, matchmarking the disc and hub and unbolstering the disc off the hub to ensure that the disc does not get driven off the hub. The bearings are installed in the opposite direction modifying the bearing preload. In front wheel drive cars, loosen the lug nuts, lift the front end of the car and place it on jackstands and then remove the tire and the wheel. Test disc run-out, lift the staked tab on the hub center nut, and remove the nut and secure the rotor by pressing the brake. Take off the brake caliper, prop it to the side, and dislodge the rotor off the hub. Install the rotor onto the hub, then the caliper assembly then install a new axle locknut to a specified torque then staked. On subsequent models, lift up the vehicle, stabilize, and check the play in the rotor and the wheel bearing, making sure that there is no evident play. Take the wheel and tire off, detach the brake line and the strut and suspend the caliper out of the way without removing the hydraulic line. Unscrew the rotor out of the hub, and screw it back into the hub then screw the caliper assembly in and ensure that the correct torque requirements are followed on the caliper bolts and driveshaft locknut. In different models, lift up the vehicle, hold it safe, check the disc brake rotor, and in case of need, take out the wheel bearing. Once the roughness or strange sound is checked, loosen the brake caliper without detaching the hydraulic line, and then take the rotor off of the hub and replace it on the hub together with the brake caliper making sure that the bolts and locknut have the right torque. In the case of the RX-7 models, it is necessary to remove brake caliper, anti-rattle spring, brakes pads and shims, then the caliper bracket, grease cap, split pin, nut lock, adjusting nut, washer, and outer wheel bearing, and finally, the rotor disc. Installation This is carried out by packing the outer bearing with grease and reassembling the brake caliper and front wheels. The inspection involves checking the lateral run-out of the disc using a dial indicator in place, that all wheel bearings are correctly adjusted and removing or resurfacing the disc in case the run-out is out of specification, and checking whether there are any scores or pits on the disc surface.