My truck is lowered with Beltech leafs and bilstien shocks. It rides stiff but It doesn't bottom out all the time. When I had 2 or 3" blocks it wacked the frame constantly on dips in the road, boost launching etc. I hate to say but I agree with Daveman, notching the frame is the best bet if you don't want to bottom it out on the stops. Your only other option is going coil-over and that's big bucks! I say throw the 2" blocks in, let it drive nuts for a few months then do it the right way. That's how I learned, and now I have 1", 2", and 3" blocks sitting on a shelf in my garage. There's a reason they're not in the truck anymore. The beltech leafs seem like a stiffer spring rate than the stockers so even at a 2" inch drop they wont bottom out like the blocks on stock leafs do.