i don't know of anyone that has used the ones from CJ pony, but there area few people here that have built their own using everyting from sealed ball bearings to bronze bushings, there is a guy that frequents here and the VMF that goes by gypsyR that has built a set using the needle bearings, everyone that has a set loves them and they all say that is absolutely the best front suspension modification any of them have done. i'll be building a set myself as soon as i can. do a search for username opentracker and check out some of the work he has done, he is pretty much the stock suspension modification guru around here. another guy that goes by dolfan87 is working on a kit for coilover front suspension that should be on the market in the next few months once he gets his supplier stuff sorted out