[bouncytruck]

My '72 has 235/85R16 and 3.07's. It is a stock combo so it is definately very driveable. I don't notice any lack of power in my truck, but I would like to swap up to the 3.73s and get a slightly larger tire. My '69 has 4.10's with 35" tires but since that truck has a built 350 and a shift kit, it is hard to judge the difference.