Now Norman, even though it won't be "drag raced" are you telling us you're never going to want to stick your foot in it to see what those 345 horses can do? Those ol's springs will support the rear of the truck just fine but are going to want to wind up under all those horses. You really need a 4-link setup in my humble opinion. But, at the very least I would run some traction bars to help those springs stay in one piece!!