I have had been a happy owner for a month now. Tonight i decided to pull a tire and check the brakes. Replace the pads and ckecked to see that the hubs felt tight. One side was okay. The other side had about a quarter inch of wobble to it. Look into it further and it appers to be loose where the two ball joints hook into the end of the axle housing behind the rotor. Got out a wrench and tried to tighten them but they wouldnt budge. Looking for input. Are the ball joints worn and need replacing. If so how hard is it to replace them. Is it a one piece unit or are the ball joints removeable. Steering wheel is not centered either could this be the problem. Any help would be greatly appreciated.