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I have a 2000 F150 extended cab. This weekend I had the opportunity to get on the ground and look at the bottom of my doors from the inside. The doors were open, both the big door and extended cab door. There was some serious rust forming on the bottom of the doors. I’d call it a pinch weld if that’s the correct term. Looks like the metal is folded over and pinched shut. That’s the best I can describe it. It was worse on the extended cab door, but rust was present at the bottom of the passenger door also. Rust was not so bad on the driver’s side.
Is there a process to stop the problem from getting worse? They are not rusted thru, there is no rust visible from the outside, yet. Anybody had any experience with this, and what did you do about it? I did search, but didn’t find any rust issues in the bottom of the doors. Thanks.
I have the same problem and I asked this question down in the paint and body section. The guys down there told me I should use some rust convertor, and then you can paint over it.