[robnolimit]

Here's some info just for comparison. I run a 3.31 at most tracks. But, my C10 has a quickchange, and I'm pretty fast at gear swaps. With a 3.31 I'd run most short tracks in 1rst gear, This yields a 9.56 net final. In Texas, I needed a little more leg, so, with what I had, I swapped to a 4.67 gear, and ran in 2nd gear, for a 8.75 net final. a little less than a 10% change. I have a floating axle as well, oval track style, with gun drilled 31 spline axles. With floaters, half of the axle load is gone, so giant axles aren't needed. I use a "platinum drive" style posi, it's gears and springs, no clutches. Chris's rear axle is on the leading edge, but this set up is now available and isn't too pricey. As the brakes systems for floaters get better, and the cost comes down, you will see more and more of them in builds. We now offer floating rear axle 9" rears on our Big-10 chassis for only $100 upgrade. Once you use one, you'll never go back.