I had a '63 Chevy Stepside with a 283, four-speed, and a low rear end. That old truck would fly. One night I was coming home late, and took the blacktop highway near to my dusty country roads. I was at about 80mph when I hit the first peaked hill and **chirp** left the ground. The next one produced the same results. The suspension sounded like an old rattley chain, but it was so much fun I went back two or three times!