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  1. #1
    Join Date
    Nov 2005
    Location
    Buhl, Idaho
    Posts
    53

    Default Ford F8000 frame extension

    Here is a F8000 truck frame that I extended 24''. Welding was done with a Trailblazer with RC12. There is a insert bolted in as well.
    Attached Images Attached Images

    Miller Trailblazer 302
    Miller 12 RC wire feeder
    Miller HF 251D-1
    Miller 175 wire feed

  2. #2
    Join Date
    Apr 2008
    Location
    JACKSON, MS
    Posts
    86

    Default whats it for?

    looks good to me.........whats the truck gonna be for? i.e. why did it have to be stretched? just curious......
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  3. #3
    Join Date
    Jul 2007
    Posts
    4

    Default

    I do not know why you did this, But the last time I saw something like this, it was in two pieces in the middle of Miami Int. Airport. what you did is a NO NO. If you know any think about large trucks, You do not weld on the frame. Check with any good truck shop. Most trucks have a sticker and some are stamped on the frame Do no Weld.

  4. #4
    Join Date
    Oct 2007
    Location
    Indiana
    Posts
    541

    Default

    Looks good, fish plates are good idea, looks like it may have cut on an angle.
    Tim Beeker,
    T-N-J Industries
    (my side bussiness)

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  5. #5
    Join Date
    May 2008
    Location
    Belle Plaine Iowa
    Posts
    270

    Default

    Truck frames are routinely cut and welded, lengthened or shortened. Always cut on an angle and double plate. It should last for many years and maybe a million more miles but keep an eye out for any cracking.

  6. #6
    Join Date
    Oct 2005
    Location
    Bulverde, Tx
    Posts
    1,244

    Default

    Quote Originally Posted by jamilone View Post
    I do not know why you did this, But the last time I saw something like this, it was in two pieces in the middle of Miami Int. Airport. what you did is a NO NO. If you know any think about large trucks, You do not weld on the frame. Check with any good truck shop. Most trucks have a sticker and some are stamped on the frame Do no Weld.

    Yup, routinely done. I've done a couple myself.


    What wire did you use?? Mine were done with Outershield 71M.
    Don


    '06 Trailblazer 302
    '06 12RC feeder
    Super S-32P feeder

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  7. #7
    Join Date
    Sep 2005
    Location
    S.W. Pennsylvania
    Posts
    2,249

    Default

    What I've seen done differently that I like is to have the brace plates bolted on or roset welded to avoid having a continuous bead of weld going across the frame. Of coarse the frame is still welded across the slanted cut but its covered by the plates.
    To all who contribute to this board.
    My sincere thanks , Pete.

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  8. #8
    Join Date
    May 2007
    Location
    Grande Prairie, Alberta Canada
    Posts
    729

    Default

    Quote Originally Posted by jamilone
    What you did is a NO NO. If you know any think about large trucks, You do not weld on the frame. Check with any good truck shop. Most trucks have a sticker and some are stamped on the frame Do no Weld.
    I'm with Don, and strongly disagree with your statement. Yes, the trucks DO have a sticker on them advising against welding ON THE FRAMES. It does NOT say that the frames cannot be welded. Totally different thing.

    That warning is just to get the attention of the Cerebral Juggernauts and Backyard Wanna-bees that try to attach chain hangers and fenders (for example) to the frame by welding them on.

    I shorten them, lengthen them, weld bumpers to them, weld rear tow aprons, and ramp/roll assemblies to them and everything stays where I put it. Now, that being said, my preference for most of the accessories (bumpers & aprons) is to bolt them on.....But, the customer is paying the bill. As long as I can meet his/her specifications with a sound and safe welding procedure, it gets done.

    End of story.

    FYI.... Frames are not "Stamped" as it creates stress risers, and can lead to cracks and failure.
    Last edited by Black Wolf; 05-29-2008 at 06:12 PM.
    Later,
    Jason

    Professional Spark Generator by Trade.

  9. #9
    Join Date
    Feb 2005
    Location
    N.E. SD
    Posts
    1,375

    Default

    Quote Originally Posted by jamilone View Post
    I do not know why you did this, But the last time I saw something like this, it was in two pieces in the middle of Miami Int. Airport. what you did is a NO NO. If you know any think about large trucks, You do not weld on the frame. Check with any good truck shop. Most trucks have a sticker and some are stamped on the frame Do no Weld.
    You should have quoted the rest of the sticker...."Do not weld to frame or drill flanges".
    Jeff

  10. #10
    Join Date
    Aug 2004
    Location
    Milan Michigan
    Posts
    1,634

    Default

    The only thing I diddnt like is the fish plate being welded on across the frame.

    I would have only welded across the frame at the splices.

    I would have put an inner channel in and let it go beyond the splice and all of my welds would have been parallel to the frame.

    Other than that Im sure its a good weld.

    I would also like to add something I saw on tv today, They were doing a lift kit on a jeep where welding was required and the guy on TV said dont forget to disconnect the battery before welding and I just had to chuckle.

    What he should have said was to keep the ground near where your welding and not on the alternator bracket when welding at the back.

    Ive had alot of my customers ask me to also dont forget to disconnect the battery before welding.
    I always knodd and say OK.
    Ive welded on well over 400 trucks and motor hmes over the years and still havent bought one computer.

    If your going to disconnest the battery then you better remember to go through and find and diconnect all the ground straps as well.

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