Took my 56 to the muffler shop today and had the exhaust extended over the rear axle to the rear of the truck. It was turned down just forward of the rear axle and quite noisy. The new setup is much quieter, but tight. I could use another two inches between the rear axle and the body/exhaust. I have the 79 Camaro frontend clip and rearend. Could I just use some of those lift blocks and u-Bolts at my FLAPS?