What's wrong with this picture Part 2, but much more serious this time.

Nice!!! but with a drian hole or a place to spray in cavity wax when cool :)

could probably do it by plug welding in sections of 1/4 or half inch steel tube across the inner cross section of the rail in a pattern like 5 on a dice

single sheet metal skin won't cut it.. needs the braceing.

double edged sword mind as decribed previously end up with 1 damn stiff section of the rail on the drivers side and a bendy one on the other :) i think its the lack of uniform bendyness and the torque applied by the box once the corrosion sets in that eventually gets em.

Dave