I'm building a sand car, 5-seater, 2400# complete, and running 400-500 hp. This is a long travel buggy 23-24" of travel. I am trying to decide if I need to run 934 CV's or not. I was told that if I want to get reliable travel, and put the power to the ground that I am going to need to run the 934's not just the 930's. The 934's seem almost 1" in diameter bigger than the 930's. So my question is what should I run?