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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Frame rot worth patching?

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Old Feb 6, 2023 | 09:42 PM
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Frame rot worth patching?

Got a ‘71 f100 4x4 with some holes on the passenger side all around the cab mount. Is this worth patching? Or is it too far gone?




 
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Old Feb 7, 2023 | 10:59 AM
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Not from where I'm sitting.
 
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Old Feb 7, 2023 | 11:11 AM
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I’d weld it up.
 
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Old Feb 7, 2023 | 11:20 AM
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If your time is free, you have the skills, and you want a long time project, go for it. I suspect the sheet metal is as bad or worse than the frame you show. Personally, I would not unless there is some compelling personal history that comes with the truck.
 
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Old Feb 7, 2023 | 12:36 PM
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One thing is that there are few F-100 4wd frames available anymore. It would be very hard to find a legal (documented) frame for it. You really should do a full body-off frame restoration on it and plate it.
 
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Old Feb 7, 2023 | 02:04 PM
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Originally Posted by RichS2659
One thing is that there are few F-100 4wd frames available anymore. It would be very hard to find a legal (documented) frame for it. You really should do a full body-off frame restoration on it and plate it.
The plan is (or was) to do a full body off frame resto. I have a 2WD truck currently (since June), so I was going to prep this 4x4 frame and then swap the 2WD for 4WD using this frame / chassis. Or by then maybe have two trucks. I’ll certainly have time to decide…

Speaking of time, how much time am I in for trying to fix this? Anyone know of a good thread or article to reference? Thanks so much for the input as always. This is also my first resto.
 
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Old Feb 7, 2023 | 08:07 PM
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You could put the hours into fixing it and getting it safe but at the end of the day most of that frame is quite thin. You'd basically be rebuilding it. Coming from a guy that is used to rust and has rebuilt, the front, back and parts of the middle of an old Land Rover frame I would push it out and say it's too far gone and no use anymore.
 
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Old Feb 8, 2023 | 07:15 AM
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Originally Posted by Tumbleweed1972
You could put the hours into fixing it and getting it safe but at the end of the day most of that frame is quite thin. You'd basically be rebuilding it. Coming from a guy that is used to rust and has rebuilt, the front, back and parts of the middle of an old Land Rover frame I would push it out and say it's too far gone and no use anymore.
I hate to agree, but that frame is pretty bad. Now by the time you buy metal and welding supplies, you may be able to buy a frame that's better than yours. Good luck and maybe provide pictures of both trucks too.
 
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Old Feb 8, 2023 | 11:08 AM
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find a new f100 4x4. They are not bringing the money that f250 4x4 are yet. grab them while you can!!!
And get a nicer ride!!
 
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Old Feb 13, 2023 | 11:56 PM
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Whay I would do is first try to find a used legal frame. Your state, Arizona, or in the southeast. You would have to find out your local requirements for getting an out of state frame legalized. If this is a no go, then I would wire wheel that area first. See what you end up with what you can see. Do you have the means to get the frame chemically dipped locally to get the whole frame back down to bare metal? That would solve the problem of rust that you can't see.
 
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Old Feb 25, 2023 | 04:26 PM
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I’d say this is definitely a no go for me. For those who said they’d weld it, I’m curious to know how you’d do it.






 
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Old Feb 25, 2023 | 09:50 PM
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Find a donor , and use all the parts for all your trucks
 
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Old Feb 28, 2023 | 12:40 PM
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IMO you would have to cut so far back to get to solid metal that most of the original frame would be gone by the time you’re done.
 
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Old Mar 3, 2023 | 11:17 AM
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Looks like typical NY salt has been working on the frame. I would definitely look around for a different frame. I have brought up a couple of 2WD frames from VA/NC.Where in NY are you? I'm N of Ithaca.
One thing to check would see if a 77-79 frame would work. I got a 77 frame because of the wider tail section to get the gas tank out of the cab. (2WD) don't know about 4x4 frame.
 
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Old Mar 3, 2023 | 05:25 PM
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Originally Posted by GLR
Looks like typical NY salt has been working on the frame. I would definitely look around for a different frame. I have brought up a couple of 2WD frames from VA/NC.Where in NY are you? I'm N of Ithaca.
One thing to check would see if a 77-79 frame would work. I got a 77 frame because of the wider tail section to get the gas tank out of the cab. (2WD) don't know about 4x4 frame.
How does the frame swap work with NY registration? Should I be looking with a frame that has a title or is a rolling chassis ok?
 
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