Hi all, this is my first post on these forums and I'm hoping you can help me. I was rear ended about two months ago in my '03 GMC SONOMA ZRX EXT CAB. Fortunately, I only needed a new bumper to repair the body damage done, but my drive shaft is now screwed up. Before the wreck, there was nothing wrong with my vehicle. Afterwards, I noticed a sort of clicking sound coming from the rear that would get faster as I accelerated. The sound steadily worsened to moderately violent shaking of the bed. The body shop guy says the U-joints are worn out. I took it to a mechanic and he suggested a fully-rebuilt drive shaft. A lot of people seem to agree that worn out U-joints and drive shafts are common on ext cab trucks like mine. My question is; Is it at all possible, and if so how, that the U-joints or the drive shaft was damaged when I was rear ended? In case it's relevant my odo is 58000 miles.