I have a '12 RZR 4 with 520 miles and my front A-arm bushings (upper & lower) are shot. And the back spindle bushings (upper & lower) are also shot. Is this all the longer they are gonna last. I don't run it in the mud and try to avoid water if possible. Can't believe that they are bad already. I originally thought it was the wheel bearings that were causing the slop.