My 06 WRX was hit near rear passenger side tire area. Shock tower and wheel itself were bent and damaged pretty bad. Shock tower, wheel and other parts were replaced. My WRX started making sounds like wheel bearing was going bad, I checked all 4 and they were in good shape. Im thinking that the sound might be coming from the rear-end being out of adjustment? or possibly the transmission or transfer case? It is a low humming sound. Any advice is much appreciated.