Drilling or Welding onto Trailer A-frame




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  1. #1
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    Default Drilling or Welding onto Trailer A-frame

    I would like to install additional corner jacks to the front of my Trailvan. These will need to mount onto the A-frame. Likewise I want to move the jockey wheel from the cross-member in the a-frame to the a-frame itself.

    Are there any concerns I need to have in drilling holes to mount such onto the a-frame? Can it cause weaknesses in the frame which will come to haunt me? Is welding better?
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  2. #2
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    Default Re: Drilling or Welding onto Trailer A-frame

    If you do drill, you'd need to install a crush tube anyway which needs welding........

    I'd weld onto the outside using inert gas (TIG or MIG) and not DC or AC arc.
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  3. #3
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    Default Drilling or Welding onto Trailer A-frame

    Quote Originally Posted by jelo View Post
    If you do drill, you'd need to install a crush tube anyway which needs welding........

    I'd weld onto the outside using inert gas (TIG or MIG) and not DC or AC arc.
    Thnx., can you elaborate on the crush tube, - not following...

    Trying to do similar to this...



    A frame is u channel.
    Last edited by Kortgat; 2018/10/07 at 09:42 AM.
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
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    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 30% of the time


  4. #4
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    Default Re: Drilling or Welding onto Trailer A-frame

    Quote Originally Posted by Kortgat View Post
    Thnx., can you elaborate on the crush tube, - not following...

    Trying to do similar to this...



    A frame is u channel.
    If it is U-channel (lipped or not, doesn't matter) then I'd just use a spreader plate on the back. The last thing you want is having torn or elongated mount holes on the U-channel.

    Crush tubes are for closed square tube/closed rails so that the bolt doesn't squash the tube when you tighten everything and apply force to the mount.
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  5. #5
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    Default Re: Drilling or Welding onto Trailer A-frame

    Quote Originally Posted by jelo View Post
    If it is U-channel (lipped or not, doesn't matter) then I'd just use a spreader plate on the back. The last thing you want is having torn or elongated mount holes on the U-channel.

    Crush tubes are for closed square tube/closed rails so that the bolt doesn't squash the tube when you tighten everything and apply force to the mount.
    Aaah ok, got it. Thnx
    2007 Touareg 3.0 V6 TDI (Facelift, Air, Rear Diff Lock, Rear Mounted Spare)
    2008 Audi A4 B8 2.0 TDI (Multitronic)
    2009 KTM 990 Adventure (Weekend Fun)
    2012 Imagine Trailvan 4-Sleeper

    * consumption needs to be seen in the context that the vehicle is towing an Imagine Trailvan 30% of the time


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