Well, the cage started as just a factory bar and I built the rest myself...it just started out as 6 10' sticks of straight tubing. It works, I rolled it about a month ago. Good thing I built the cage 2 months ago!
I haven't measured anything on the 70 compared to the 14bolt yet except for the spring perches, which need to be moved... and the axle tube, which is WAY bigger. Seems to be about 4". The brakes are HUGE and make my 14bolt look like a 1/2 ton axle /forums/images/graemlins/shocked.gif
As far as cutting up the crew cab, the only thing I cut up was I torched off the front bumper brackets and the trailer hitch. If someone wanted to put it back together, its all there (except the axles... /forums/images/graemlins/waytogo.gif) and could be built again... it is just not something that I wanted to do. I would rather build my Bitch w/ the 1ton gear! But you know, to each his own...whatever blows your skirt up...