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Technical 9" Ford Back Truss

Discussion in 'Traditional Hot Rods' started by FNG, Mar 12, 2021.

  1. swade41
    Joined: Apr 6, 2004
    Posts: 14,466

    swade41
    Member
    from Buffalo,NY

    I've seen a few rear ends with slight V shaped tubes welded right on the bottom of the circle (if you will) then outward to the coil over mounts to prevent twisting, like this.

    20210313_214813.jpg
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 59,927

    squirrel
    Member

    sometimes off road vehicles have a truss under or over the axle housing, for vertical loads. The one across the back is for front/back loads, caused by the tires pulling the ends of the axle forward, while the inertia of the car, acting through the rear suspension, tries to hold the housing back.
     
    kidcampbell71 likes this.
  3. DDDenny
    Joined: Feb 6, 2015
    Posts: 22,393

    DDDenny
    Member
    from oregon

  4. Mr48chev
    Joined: Dec 28, 2007
    Posts: 35,967

    Mr48chev
    ALLIANCE MEMBER

    From a been there done that. Just take the tank off and clean it out and be done with it before you run it. You are going to take it off sooner or later. Later being after you plug up three or four fuel filters if you have them in front of the pump. It might be a pain in the **** to clean the tank first but it is a royal pain in the *** to lay under the car changing a plugged up fuel filter.
     
    swade41 likes this.
  5. anganman
    Joined: Aug 21, 2021
    Posts: 1

    anganman

  6. Zax
    Joined: May 21, 2017
    Posts: 901

    Zax
    ALLIANCE MEMBER

    Yes, but not in a rod. I used a f100 9 inch housing for a Jeep CJ project. Much easier to bend a housing doing off road than street applications.
    Had a friend that is a professional fab guy do the welding. He worked on it all day off and on so it did not warp from heat.
     
  7. birdman1
    Joined: Dec 6, 2012
    Posts: 1,683

    birdman1
    Member

    Or a t5 transmission
     
  8. birdman1
    Joined: Dec 6, 2012
    Posts: 1,683

    birdman1
    Member

    The 9" in my 58 t bird broke at the right side axle tube. Had the coil spring rear end. I welded it up and put a strap iron brace on the bottom.
     
  9. 1952henry
    Joined: Jan 8, 2006
    Posts: 1,583

    1952henry
    Member

    If the brace Squirrel has works, I would go with it. With his hp, and the fact that he drives his car to a race, steps into it hard, then drives to another race, it would be something to consider. I would rather doubt he would be tooting it otherwise.
     

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