The old rollbar the little Jeep came with was fine, but I wanted the new seats tied into the cage for additional safety. I figured if the seats and cage were one solid unit then I wasn't banking on a slightly rusty 50-year-old tub to protect me should the world go belly up. I came home from Industrial Metal Supply with three sticks of 11/2x0.120-inch and one stick of 1x0.120-inch chromoly DOM tube and headed to Chappelle's Exhaust and Kustom, where we laid out a design that was no taller than the windshield. It was as simple as the old CJ itself. Our first design was built with exhaust tubing to make sure we didn't waste the high-dollar chromo.