Does anyone know if they make a patch panel for behind the rear wheel opening on a 64 elco? I see opg makes them for a 64-65 chevelle but i am not 100% sure that is the same for my elco. Any help will be great.

I'm not totaly sure but I don't think they are available. Those panels will also fit a two door wagon and I haven't seen any in any of the catalogs I've looked at. I haven't checked places like J.C. Whitney or Sherman though.I did buy a complete quarter for a 64 Elco to put on my wagon and it was crap. Returned it.How much of the panel do you need in relation to the lower bodyline.

Max is right. I know of no repair panel for the lower rear 1/4, If your area of repair is below the low body line, your in luck as it's almost flat with a radi at the bottom.
Some 20ga steel maybe access to a set of rollers or a 2in dia peice of pipe , to form the lower contour.

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Wayne
ACES# 1556
TCG # 186