I am replacing the support rails for the bed of my 2007 F250. (I
thought about a bed replacement but it seems the rails are the only
rotten parts. NO RUST in the fender wells!)
Once the old rails are removed, my plan was to rosette-weld in the new
ones. But, I have the ability to use aircraft rivets, probably 3/16"
size. If I do this, I can seal the entire junction with silicone, as
I've done in my FFR Roadster. Welding will leave a place for corrosion,
but would the exposure be better or worse with the dissimilar metal of
the rivets, aluminum v. steel?
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