I use 78's but I'm sure others will work. It realy is easy what I do is cut the truck frame off just behind the firewall. The frame rails are the same width as the sub frame. lay the truck frame on top of the subframe clamp measure , measure,& measure again. Diagonaly and both sides. This will give you a lower but level stance with useing the rear springs from the camaro. Make sure you get a camaro with multiy leafs. You can reuse the brake booster master cyl (type) disc brakes front and drum rear. Your basicly puting a truck body on a camaro. I have a picture in my galery of the last one I did. I guess it realy boils down to how much work you want to do and how much money you want to spend.