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The rear cab corners on my truck are rusted through, and I mean THROUGH! I don't know how to fix them, I heard that the patch panels you can buy for them are crap. Any ideas? Thanks
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Can't believe noone gave you a response. Here's mine.
If you have never done any bodywork and don't have the tools, rusted out cab corners are going to be a tough nut to crack. You might consider hiring out to have it done.
I just took some "The Great Stuff" expanding foam in a can stuff, sealed up the hole good. Then I took a hack saw blade and trimmed off the extra, then paint. But I'm sure theres a better way to do it if you want it to look good.
All I have done is fix dents. I am a good welder, I just don't have autobody experience. Paying someone else to repair something for me just seems against my principles.JK. I would like to do it myself, though.
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All patch panels are junk. I haven't found one yet that fits right. After getting them in, you have to tweak them. The only sure way to get metal that fits right is to find a donor. Cut yourself a patch from the donor.
Most people use a lap joint when they put in a patch. If you're **** like me, you use a butt joint. It doesn't take much skill to do the welding if you have a mig. Tack the patch in and then make small welds (approx. 1") allowing the metal to cool between passes. After the patch is welded in, grind the weld. Finish up with some filler.
BTW, I did an experiment on a VW I just finished. Had to weld on a new front clip. One side I did a lap joint and the other side was a butt joint. The butt joint took a little longer to finish. The end result was that you can't see the joint on either side. I suspect the butt joint is only needed if you are doing a repair where no filler will be used.