I did it to blue92's yj that he had a little while back. i wouldnt use stock springs, within a couple weeks his stock springs started to buckle and form a S. Buy some springs that are made for the spring over and buy a slip yoke eliminator to help with the driveline angle. The back was easy as hell just weld some new perches on the axle and swap springs. Front was prity much the samething but we changed somethings on the steering.