Regarding "u-joints" I would suggest replacement with new. The difference in price and the little bit of money you will save by buying used will be far outweighed by the aggravation of quick failure of the "used" replacement. Go to one of the many online Valkyrie parts stores and you will surprise yourself on how low the actual price is. I think I paid about $75 bucks for a new one.
Ricky,
He needs it to replace his broken spline cup on his custom Valkyrie. While going new would be the idea application, he just wants to get on the road again.
Joe