Originally posted by BigTruckDriver
I cut the old front shock mounts out ,and the area where the emergency brake passes through the frame.I want a smooth frame rail.I will use a aftermarket E.B. I am going to get the frame sand blasted and then weld from the back.I will then box the frame with 3/16 inch metal.After boxing the frame do you think it will be strong ,and not crack, and handle 600 horses? Should I weld a plate behind the sections I cut out then box,they are vertical and horizontal welds.I am redoing my 65 chevy short bed to handle racing abuse.After I weld the boxing plates I will weld in all the crossmembers.I will also install a simple roll cage for safety ,this should help keep the frame from twisting.Thanks for the input.
..... well it's hard to say without seeing it, but if you stand back and look at the entire project and just try to imagine what twisting, pushing and pulling forces will be where, you should be able to get a good idea. Just keep in mind that Vert. & Horz. welds have a tendency to crack when repairing a frame. The boxing just might do it, but if I were you, just to be on the safe side, I would weld what they call a 'fish plate' on the inside of the frame over your welds. You weld this metal patch on at a 45 degree angle over your repair. Since its on at a 45 degree, your welds will also be at a 45 degree. hope this helps, Bill