I have installed two Chassis Eng units---one on a 40 Ford and another on a 51 Chev half ton. Both went on PERFECTLY. Follow the detailed instructions as to which rivets to remove and the order of installation and you won't miss. I used their sway bars on the coupe and the cornering is suburb. Alignment shop was able to get it right on spec as well. I choose the bolt on unit as the older frames were designed to flex and you might experience stress cracks on a welded one. You will I am sure find various opinions on this. All hardware is supplied but I switched to grade 8 as I like overkill. Good luck with the project.