Thanks for all the info. It looks like the M II is the prefered way to go. I think I might have overdone it when I said 3-4" drop. If I only need 2" drop, would I be wasting effort with just the 2" drop spindles and update the brakes to disk? If I went this route is it practical to adapt a power rack & pinion? Not trying to get anyone to do my research but you guys have the experience. Thanks again.