Keep hearing about frame twist with 440s
I used 1/8" thick 2x3 box as well. Layed it 3" wide, 2"tall. The box steel laying it flat only sticks up 1/2" through the rear seat foot pan. Extra padding on either side when you put the carpet down, and nobody will ever see it. I also made 1/8" thick transition plates to transition the load from the thicker 2x3 to the torsion bar crossmember. Drilled 3/4" equally spaced drain holes. Pic shown with green epoxy primer the subframe connector is pinned in place but not welded in yet. Gives you an idea.
I also relocated my parking brake cable to inboard of the subframe connector. This works fine on cars up to 1972 and puts the cable in line with the rear floor pan mounted fairlead. Otherwise the cable has to cross over or pass through the subframe connector. When I mocked the cable up I also mocked up my clutch linkages and exhaust headers. It all fits cleanly.
Hope this helps
Matt
I used 1/8" thick 2x3 box as well. Layed it 3" wide, 2"tall. The box steel laying it flat only sticks up 1/2" through the rear seat foot pan. Extra padding on either side when you put the carpet down, and nobody will ever see it. I also made 1/8" thick transition plates to transition the load from the thicker 2x3 to the torsion bar crossmember. Drilled 3/4" equally spaced drain holes. Pic shown with green epoxy primer the subframe connector is pinned in place but not welded in yet. Gives you an idea.
I also relocated my parking brake cable to inboard of the subframe connector. This works fine on cars up to 1972 and puts the cable in line with the rear floor pan mounted fairlead. Otherwise the cable has to cross over or pass through the subframe connector. When I mocked the cable up I also mocked up my clutch linkages and exhaust headers. It all fits cleanly.
Hope this helps
Matt
