I know they're using B body rear brakes, and are going to run a 17x7 inch wheel. This is more or less a replacement for a stock setup, so the axle can't be narrowed and you really can't fit anything bigger than what can fit on a stock rear suspension. Since it's a new kit, it's hard to say if they might build a kit for relocated spring mounts... I would think it's possible to accommodate that, but for now that's not on the drawing board yet.
