Not gaining much. Rear hookups on 1st Gen and 2nd look to bolt on with Brake caliper and bolt spacing is different. This is on head of axle side. Nut side may work. Belly Pan I'm not sure of yet. I got it because of the reading I did I figured I could put it on one of the 1st Gens. So far 2nd Gen just enough different to stop that. If the belly pan is interchangeable I may be able to drill holes for the back. It may take some time.