1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Flange Or Butt Weld On Replacement Rear Corners?

Discussion in 'Early CJ5 and CJ6 Tech' started by Buildflycrash, Sep 1, 2021.

  1. Sep 1, 2021
    Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Gulf Breeze FL...
    Joined:
    Jun 5, 2007
    Messages:
    3,559
  2. Sep 1, 2021
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
    Joined:
    Feb 8, 2021
    Messages:
    1,620
    That depends on how good a welder you are. I am not such a great welder so would use the flange, MIG weld it, and seal the backside with something.

    A friend of mine welded in a patch panel on my CJ2a dash which he butt welded with a TIG welder. He did an absolutely beautiful job with no gaps and needing very little dressing to get it perfectly flat with no filler needed. After paint the repair was invisible, but I don't know anyone else who welds as good as he does.
     
    dozerjim likes this.
  3. Sep 1, 2021
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Liberty Lake, WA
    Joined:
    Aug 13, 2015
    Messages:
    6,656
    That flange adds strength and will help fend off heat deformities during the welding process. I’d try to keep it and go heavy on the seam sealer afterwards.
     
    dozerjim, wheelie and Twin2 like this.
  4. Sep 1, 2021
    JeepinJewels

    JeepinJewels New Member

    Post Falls, ID
    Joined:
    Oct 16, 2011
    Messages:
    38
    I own a body shop that does a lot of rust repair. We almost never flange weld stuff bcuz it’s really difficult to seal it completely from rust. I cut out these types of repairs quite often and butt weld them. I will be replacing one of those on my CJ6. Just My Opinion
     
  5. Sep 2, 2021
    Dave Deyton

    Dave Deyton Member

    Fuquay-Varina, NC
    Joined:
    Oct 12, 2003
    Messages:
    847
    I did the flange welding on my old first gen Toyota pickup. Didn't last. Those beds were poorly constructed anyway and all rusted out. This rusted back through siting in the garage. After I had sandblasted and used weld thru primer, then primed and painted the patch, it still came through.
    If I ever finish this pickup, I will probably get a reproduction fiberglass bed.

    All the repairs on the Jeeps now have been butt welded and I haven't seen a return of any rust. They are in the garage also.

    If I take the time to do it, I will butt weld my patches from now on.


    Dave
     
  6. Sep 2, 2021
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,361
    I would just straighten the existing corners.
     
    RATTYFLATTY and Norcal69 like this.
  7. Sep 2, 2021
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,102
    Radical. :susp:

    Unless you live in a dry climate I vote for butt weld.
     
    Buildflycrash likes this.
  8. Sep 2, 2021
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,717
    Practice your butt welds then see how you feel.
    Whatever you do, you likely need armor...

    I've seen Scott's driving.
     
    colojeepguy likes this.
  9. Sep 2, 2021
    Buildflycrash

    Buildflycrash More or Less in Line. 2024 Sponsor 2022 Sponsor

    Gulf Breeze FL...
    Joined:
    Jun 5, 2007
    Messages:
    3,559
    Ouch!
     
    Fireball and Jw60 like this.
  10. Sep 3, 2021
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,549
    From a fellow hammer and dolly guy, Buildflycrash’s quarters look easily fixable once that filler is ground off!
     
  11. Sep 3, 2021
    Dave Deyton

    Dave Deyton Member

    Fuquay-Varina, NC
    Joined:
    Oct 12, 2003
    Messages:
    847
    I find that large amounts of filler cover some small damage.
    Sometimes I find a small dent you can hammer out under a gallon of Bondo.
    Regardless, removing the excess filler and straightening the steel underneath is a good start.


    Working in small steps with a hammer and dolly can really fix a lot of damage.




    Dave
     
  12. Sep 3, 2021
    Keys5a

    Keys5a Sponsor

    Florida Keys
    Joined:
    Jan 23, 2014
    Messages:
    4,170
    X3 on repairing the existing panel. Grind/sand the bondo off an see what you have. Pretty easy access for hammer/dolly work.
    -Donny
     
  13. Sep 3, 2021
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    Right, that looks repairable to me. I would grind out the bondo. The flat part of the steel is easy to cut out and repair if you need to. Seems likely there's no need to replace the entire panel.
     
  14. Sep 3, 2021
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,549
    Its just my opinion, based on experience, but its still an opinion.
    If you are going to use your jeep for ice cream runs, fire road riding, pavement mounding....... Your fine with some filler on the rear corners.
    If your going to use your jeep for the above.... plus ranch work, hunting, rubicon... ect then you are better off to have as little filler as possible on the jeep. Especially the rear corners!
    I can carefully hammer and dolly out quite a bit of damage without disturbing too much paint. Try that with filler and you have a mess.
     
  15. Oct 1, 2021
    OssaMAR

    OssaMAR New Member

    East of Nowhere
    Joined:
    Oct 27, 2020
    Messages:
    1
    Here is the best way I have seen to butt weld new metal to old.
    Cut the replacement about 1-2 inches lager than needed.
    Screw it in place then cut the weld line thru both pieces.
    Peel new piece away and old as you tack to the body.
    Then grind and finish for paint.
    [​IMG]
    [​IMG]
    [​IMG]

    [​IMG]
    [​IMG]
     
    mortten, Buildflycrash and Fireball like this.
New Posts