Seen them pop up on Craigslist and eBay from time to time, also worth a classifieds post here. I was concerned about re-using mine because it had close to 200k on it, but the U-joint was still solid with no slop, I think that is all that wears. I plan on trying to have the U-joint rebuilt someday when the time comes, supposedly that is possible even though it isn't meant to be.