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cut the frame or move the hangers????????????????

Discussion in 'The Garage' started by TWISTEDJACK, Jul 31, 2003.

  1. TWISTEDJACK

    TWISTEDJACK 1/2 ton status GMOTM Winner

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    I am getting ready to start my flatbed/shorten the wheelbase project. I am torn between cuting the frame or moving the spring hangers. My wheelbase is 133 right now, I am shooting for 115-120. I have see it done both ways. The issues that I see with moving the hangers is figuring out the pinion angles. /forums/images/graemlins/confused.gif The problems I see with cutting the frame is cracking later. /forums/images/graemlins/confused.gif If I cut the frame a friend of mine that extends/shortens truck frames is going to weld it up. He said it should be fine as long as the frame is allowed to twist.
     
  2. kennyw

    kennyw N9PHW Premium Member

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    If you cut the frame with a step in it, reweld and re-inforce the area it will be fine. I have seen that method used with heavily abused dump trucks to extend the frame with good results.
     
  3. zakk

    zakk 1/2 ton status

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    cut the frame. Moving both hangers would just be a hassle.

    will the vehcile be driven on the street?
     
  4. TWISTEDJACK

    TWISTEDJACK 1/2 ton status GMOTM Winner

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    I was told to cut it on an angle at 2 1/2 times the height of the frame and not to reinforce. So if the frame is 10" high I would cut on an angle 25" and then reweld.
    And yes I do drive it on the street still.
     
  5. kennyw

    kennyw N9PHW Premium Member

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    Frame splicing article
    I would not do any kind of splice without re-inforcement /forums/images/graemlins/eek.gif
     
  6. m j

    m j 1/2 ton status

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    if you plate the frame behind the cut you do not even need to weld it.
    look at the 3 piece dodge frames, 3 subsections riveted together.
    my money is that you will have ZERO issues with cutting and welding your frame,
    angles/steps/vertical not real important
    I would have a piece of steel formed to fit inside the rail and bolt it in place, but IMO it is just for piece of mind
     

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