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  1. #1

    Default Where are you guys getting your metal and what size for frame rails?

    I'm designing my rod in 3D software while I accumulate the bigger partss first (cab, bed, drive train, etc).

    Are you guys using hot rolled or hold rolled rails?

    I'm using a 6BT Cummins so thinking about 3x4 tube 3/16 thickness. 1) Because of engine weight (1,000-1,150 lbs) and the torque the engine produces.



  2. #2
    Join Date
    Sep 2010
    Location
    Westlock Alberta
    Posts
    369

    Default

    I worked at a he repair shop and scrounged lots of metal from the scrap bin.... but most city's have bulk steel suppliers and will usually sell small amounts.... I used an original frame from a 50s gm 2.5 ton which is 3/16 C channel and I boxed it all up with 1/4. Where the I Z'd the frame used 1/4 for guests all around... also using a Cummins in mine. See 20's cars, "new project, what is it?"

  3. #3

    Default

    2x4x3/16 is what i use. I had a 1000 lb engine in my last car and that fram held up just fine. Some guys will say 1/4, but i think the 3/16 will hold up fine.
    Clutter is the evidence of life!

    https://www.minterfab.com/

  4. #4

    Default

    Are you guys using cold rolled or hot rolled tubing?

  5. #5

    Default

    For what its worth, I have an 03 Dodge Ram 1500 quad cab 2 wd pickup here. It was a V8 truck, not a Cummings, V8s are considerably lighter then a Cummings. The frame on it is 6" x 3" tube with 1/8" wall thickness.

    You will want hot roll steel for the tubing (and everything else) for your frame. I'm not sure you can get cold roll tubing in the sizes you will need. Gene

  6. #6
    Join Date
    Jan 2012
    Location
    superior montana on 1.25 acres out of town
    Posts
    2,490

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    In regards to 3x2 rectangle tube steel in a 20 foot stick, there is about 24 lbs weight difference between 3/16 and 1/4 wall. I personally overdo when it comes to steel. I will take the extra weight and cost anytime.

  7. #7
    Join Date
    Mar 2012
    Location
    Zephyrhills, Florida, USA
    Posts
    96

    Default

    Quote Originally Posted by lowbudget50 View Post
    2" x 4" x 3/16" is what i use. I had a 1000 lb engine in my last car and that frame held up just fine. Some guys will say 1/4", but i think the 3/16" will hold up fine.
    I agree, 2" x 4" x 0.1875" is a God's plenty. If you want the car to look beefier, use 2" x 6" x 0.1875".

 

 

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