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Thread: Tube frame side rail question

  1. #1
    Senior Member
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    Tube frame side rail question

    Does anyone know what size the rectangular side rails are on a typical tube chassis?

  2. #2
    Senior Member lukester's Avatar
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    Re: Tube frame side rail question

    Ok depends on the chassis, but most of the drag cars and replica cars are 2 inches x 3inches .120 (1/8 inch) wall.
    Hope this helps..Later Luke

  3. #3
    Senior Member Don's Avatar
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    Re: Tube frame side rail question

    My custom frame was built with 2x2 frame rails on the bottom and everything was built up from there.

    The actual size of the tubing certainly matters but the angular connections and reinforcing is right up there as being as important as the size of the lower frame rails.

    As Luke said, it also depends on the application and design of the frame as well.

    If you are looking at doing more reinforcement for the Fiero, 2x2" square tube cut into the side rockers and angled up to the top rear frame rail in the engine compartment area and angled up to the top frame rail in the front wheel wells is the best way to go by far.

    Cheers
    Don
    308 Ferrari replica
    Prova Countach 5000QV

  4. #4
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    Re: Tube frame side rail question

    thanks guys, this is what I was looking for!

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