Hi, I'm wondering how hard its going to be to find a frame for my 75 F-250 4x4. the body on it is in really nice shape, but the frame has a rust hole right thru it, all the cross members are rusted paper thin where they meet the frame. I could probably go and buy some steel and fab up my own frame, but i'd rather find something useable. thanks
the frame on my 78 F-250 snow fighter is in the same shape, all the crossmembers are rotted and there is a hole i can put my fist through behind the rear/rear spring shackel...... i plan on stripping it to nothing, sandblasting, then boxing the frame for support, as for the crossmembers, im replacing all of the rearward ones with 4" square tubing.....ill make a custom mount for the NP205 going in it, and replace the tranny support with one from salvage possibly...with the boxed frame, not only will it give the old frame new support, i can run all my wires and brake lines through it out of sight.....it will take some effort and time, but i think it will be worth it in the end....
I have found 4x4 frames on Ebay with running gear for about 500-800$. You could buy one of these sell the running gear and have a free frame. I just saw an early 77 F250 Highboy frame with running gear for 800 a few weeks back.
I am actually in the same situation as well. The only thing is the frame I have is what I plan to swap my F-150 cab onto cause I want the 3/4 ton running gear which I plan to build up to 1 ton anyways. I havn't noticed any rot holes in the frame itself, but I did notice a few rotting cross members. I did plan on sandblasting the frame completely but I was thinking about going to Joes to see if I could get some good crossmembers. But I like SwOkcOffRoader's idea on boxing the frame and building the crossmembers. I think im going to look into that idea.