rev up your engines, Scotty i have a problem, i change the axis bushings on my irs, short time later i hear a rubbing sound, i took the hub back off and had napa replace the bearings, and i still hear a rubbing sound on that side of the car but i only hear it when it’s not under a load from the motor, Can it be the half shaft, i would appreciate any insight on this matter

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could be lots of things, but if it rubs, look closely for rub marks on the offending part