Welding the rocker panel joints

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  • E30 Wagen
    No R3VLimiter
    • Jul 2005
    • 3425

    #1

    Welding the rocker panel joints

    Searched but didn't find any discussion about this. On my four door I want to eliminate the seams on the rocker panels where they join with the quarter panels. I really don't like how they look plus rust likes to develop there. I was thinking about just laying a thick mig weld over it and grinding it smooth but I worry about rust forming underneath it. I also wonder if those seams are there for a reason and it's best just to leave them alone. There's also seams in the door frames that join the roof to the A/B/C pillars that I want to hide. Thoughts?
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  • ahlem
    Grease Monkey
    • Sep 2008
    • 369

    #2
    you could use old fashioned lead like they did on the fascia of the 2002 to upper fender joint. Or might be an excuse to get some add-on ground effect parts. The problem with a heavy MIG weld is what happens inside where you can't get at it to treat the burned off surface.

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    • badwella
      Grease Monkey
      • Aug 2010
      • 357

      #3
      Yep, lead is an option. Also, you could get silicon bronze mig wire (or tig filler rod if you have a TIG machine). It's what was used on the top side of the rocker seam anyway.

      After replacing my rocker panel I went back and sprayed in rust inhibitor stuff by Eastwood. It has a hose with a 360 degree spray nozzle that you shove in through a small hole and spray inside. Good preventative measure for anyone who doesn't want their rocker panels to rust out.

      This is what I used:

      https://www.amazon.com/Eastwood-1251.../dp/B003NTPE9W
      P.O.S 1989 325is - aka Project Sh*tbox

      Project Shitbox - Restomod and other stuff - soon to be 328is

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