Help diagnosing rear end vibration 99
So thanks in advance for reading and helping me out here.
Awhile back I was coming out of a left turn underpass and The rear of my car slid out a tad and tagged the curb with the passenger rear wheel. It didn't feel like a hard hit, but it did leave some scratches on the wheel.
A day or so later I noticed a faint vibration coming from the rear pass side of car. Not enough to feel, but easily heard. Took it in to have wells balanced and rotated. Swapped the rear right wheel with the front right. The vibration remained in the rear. the wheel itself is not bent.
So, time goes on and vibration gets more intense, now I can feel it, not just hear it. So I decided to jack up car with both rear wheels in the air. Took off wheels, brakes and rotors.
The right rear rotor has a ton of scratches in it, but only on the inside surface. I will post picture soon.
Is it possible that the rotor is bent? Or is it more likely that the hub or axle is bent, causing the rotor to not spin straight?
I also did another test, putting the car in gear while running, allowing both hubs to spin. I used my had to lightly grab the lug bolts to try and stop the spinning. The rear right hub stops spinning very easily, without making any grinding noise. When I let go it doesn't want to start spinning again unless I give it help. Feels like the gears are worn.
On the driver side rear it is completely different story. It is much more difficult to stop or slow the spinning, and it makes an obvious grinding sound. I only tried that side once for a very short time since I didn't want to mess it up.
no LSD btw.
Do I need to rebuild the rear end, or should I swap out the entire diff, axles, hubs, from a donor car?
