thanks for the input TremecGT, I looked back through the forum and the closest thing I found was from FORDBOYpete. it said he wouldnt do the 64 swap onto another frame even for money,unless it was a 4x4,well thats what im working with. I tried to e-mail FORDBOYpete but couldnt because I was new to this forum,so FORDBOYpete if you could help me all would be appreciated !! THANK YOU.

 

GPA; Welcome to FTE! I am not FBP, but I can give you a few answers based on what I know, and on what others have attempted. This all applies to the 4x2. Also, I am not including every single detail and exception. (FBP can give you more detailed descriptions, but this is enough for me to want to back off of it. Should you decide to go for it, stay in touch here at FTE to get answers and help. I know I have been helped with my '66.)
1. The '64 and earlier frame and suspension are different than the '65 to '79.
2. Cab mounts are located differently, the front suspension is not even closely interchangeable, and front brakes are not interchangeable with later ('73 and later) disc brakes.
4. Steering is different. Different gearbox, different column, and linkage. The column goes through the floor '64 and earlier, but goes through the firewall at a different angle on the '65 and later frame.
5. Motor and transmission mounts are different. '64 and earlier V-8s (don't know about the sixes) use a front motor mount plus 2 rear motor mounts at the transmission. '65 and later use the two at the side, plus the rear transmission mount.
6. Changing anything in the drivetrain usually means changing out the entire drivetrain plus frame modifications for the supports. '64 and earlier use the Y-block for 8 cylinder engines; '65 and later use the sixes, FE, 335 or 385 series motors; any of these can be put into a '65 to '79 without major modifications, and usually with factory parts from a donor truck. There is probably only some limited interchangeability with 6 cylinders from the '64 to the later trucks.
All in all, unless you are professional at refabricating frames and suspensions, I would not use a '64 or earlier. If you want a later frame with the '60s style body, it would be far easier, cheaper and quicker to buy a '65 or '66, and put that on a later frame.
The frame was widened in '73, but only for the bed. The cab (and front clip) mounts are the same '65 to '66.
Finally, Ford kept many of the same dimensions for 4x4 trucks, so that swap would be much easier - so I am told. I have no knowledge of 4x4 swaps or details beyond this.

Just my opinion, I welcome any corrections, and hope this helps!