So, on my '99 CCSB k2500, what is the difference in the rear axles between it, and a k3500? I hear people say the dually rear end is narrower. Even if that's the case, could I not just put longer studs and run duals? Or would there be a balance issue? I don't know much about axles/suspension. and for the front, do the dually's have different hubs in the front? that make the wheels stick out more and are they just different studs as well or what.