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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

Stripped hinge thread

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Old Feb 9, 2020 | 06:56 PM
  #1  
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Stripped hinge thread

So I got to put cab back onto chassis today and tried to put the passenger side door on, I chased the post threads out thinking they were fine but when I tried to tighten down on the fine thread bolts they are stripped or close to it, the original ones are 5/16” and was wondering has anyone ever gone up one thread size to 3/8” and if so were there any problem trying to do this? Thanks in advance with any help
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Old Feb 9, 2020 | 07:22 PM
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Originally Posted by Another rusty Ford
So I got to put cab back onto chassis today and tried to put the passenger side door on, I chased the post threads out thinking they were fine but when I tried to tighten down on the fine thread bolts they are stripped or close to it, the original ones are 5/16” and was wondering has anyone ever gone up one thread size to 3/8” and if so were there any problem trying to do this? Thanks in advance with any help
and information
If you are working on a 48-52, the repop hinge screws may be long enough to put a 5/16-24 nut on the back.

JB
 
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Old Feb 9, 2020 | 07:38 PM
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My memory of the exact way the threaded plates are held in is fuzzy, but it is possible to get at the cage built around them, bend up a tab, and pull the plate out for replacement.
 
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Old Feb 11, 2020 | 06:39 AM
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Originally Posted by ALBUQ F-1
My memory of the exact way the threaded plates are held in is fuzzy, but it is possible to get at the cage built around them, bend up a tab, and pull the plate out for replacement.
Yes, I had to pull my plates out to remove some broken bolts. It’s tight back there, but it can be done.
 
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Old Feb 11, 2020 | 12:57 PM
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The truck is a ‘56, not sure if that matters but the nut is welded to the bracket so I guess im
going to be drilling them out and taping them
to the next size which is 3/8”

 
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Old Feb 12, 2020 | 06:55 AM
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Man that sticks! Have you tried a thread repair tap and then using a new bolt? It might be worth a shot before redrilling and tapping it out to 3/8.
 
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Old Feb 12, 2020 | 01:47 PM
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If that's the nut in question in the photo you have good access to it to remove and weld in a new nut..
 
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Old Feb 12, 2020 | 04:26 PM
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Originally Posted by 56panelford
If that's the nut in question in the photo you have good access to it to remove and weld in a new nut..
Exactly what I was thinking too
 
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Old Feb 12, 2020 | 05:01 PM
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That would have been way to easy, unfortunately 5 of the 6 threads on the passenger side are stripped and getting to them are impossible since I already welded the repair panels that’s why I’m thinking it will be easier to tap to the next size which is 3/8”, not sure if a metric would work, will experiment over the weekend, thanks for the suggestion 👍
 
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Old Feb 12, 2020 | 08:04 PM
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On 48-52's the screws are tough to find with the correct head that will clear the opposing hinge when closed. Is that an issue on Mid-fifties too?

I think I'd try drilling thru the nuts at 5/16" and put another nut behind them.Not something you need to access more than once.
 
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