Well I am going with the springs holding down the cab from flying up. And putting several wood points on rubber here and there. So that would be held rigidly down and if jumping upward it (the cab)would have the springs hold it down. Still seems kind of wishy washy especially when I think of seat belts. I could imagine the cab flying off but the human belted in place would keep the cab on the truck!! ---davy

1934 Chevy 1/2-Ton