A sticky brake caliper could do that.
The hub bearings in a 1998 Z71 can not be repacked. The bearings are part of the hub, and the hub assembly will have to be replaced.
No. That is a factory sealed bearing.
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c1528008f53e
chevy cobalt torque specfront hub
The grinding could be coming from the rear brakes.
To remove the hub assembly on a 1998 Chevy 3500 truck, first, safely lift and support the vehicle. Remove the wheel and tire, then disconnect the brake caliper and rotor. Next, unfasten the hub assembly by removing the bolts securing it to the steering knuckle and disconnect any electrical connectors if equipped with ABS. Finally, pull the hub assembly off the spindle, ensuring you have removed any retaining clips or components as necessary.
yes you can but good luck finding one
put chain around the small hub, take something heavy and snatch or a quick jerk on the axle.
remove wheel and brake caliper,break rotor loose from hub with rubber mallet by hitting outward
NO you can not. There's no way to install them, Because of the way the front axel comes through the front hub. NOT POSSIBLE.
Instructions on how to change the rear hub wheel bearings on a 1996 Chevy cavalier
how to change rear hub on 2006 chevy cobalt 2.2l