quarter panel replace ment

Oldmanmopar said

I think he is using the aluminum for a backer while welding. No way would the aluminum weld fast to steel. Unless he's the one with an aluminum magnet.:happy5:

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Exactly, the aluminum is only clamped or held behind the panel while welding to prevent burning through the steel and creating a hole that you will then have to fill, then the aluminum is removed. This is not the be all to end all, its just a technique I use when butt welding to make life a little bit easier.