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Technical 1940 ford spindle info

Discussion in 'Traditional Hot Rods' started by DG Racing, Mar 27, 2022.

  1. DG Racing
    Joined: Dec 11, 2009
    Posts: 50

    DG Racing
    Member

    hi is this the good lenght for the shaft ?
    it looks to short 20220327_204050.jpg
     
  2. Dave G in Gansevoort
    Joined: Mar 28, 2019
    Posts: 3,744

    Dave G in Gansevoort
    Member
    from Upstate NY

    Doesn't look like it. Here's a picture of a stock one
    DSCN1340.JPG It measures 5 inches to the end of the threads.
     
  3. dana barlow
    Joined: May 30, 2006
    Posts: 5,430

    dana barlow
    Member
    from Miami Fla.

    5.5in. I think is norm, @ least for 1948 sq. back,that I just did. The way your showing to outer tip. Lets some others input.
     
  4. Fordors
    Joined: Sep 22, 2016
    Posts: 6,490

    Fordors
    Member

    I get 5 & 7/16” OAL, the thread is 15/16” in length and the .750 inner bearing diameter is 13/16” in length.
     
  5. X38
    Joined: Feb 27, 2005
    Posts: 17,498

    X38
    Member

    Is that an actual Ford one?
     
  6. My spare round backs are 5-7/16 as well. Yours appears to have a extra hole in board between the 2 mounting holes which ive never seen. Whats the back look like? Could it be a F1 spindle, or a Lincoln,or a Ford tractor?
     
  7. Fordors
    Joined: Sep 22, 2016
    Posts: 6,490

    Fordors
    Member

    5CE85851-F2AC-495A-9542-DF26306056D2.jpeg
    Here’s a sketch of a Model A spindle that shows the modifications necessary to adapt Model T hubs from T wooden wheels. The wood spoke wheels had hubs with six bolt holes, not lug bolts, but bolts to hold the hub to the spokes.
    The six lug hubs were popular on early oval track cars.
    I’m not sure but the dimensions on the spindle that @DG Racing posted look like they could match.
     
  8. Nailhead Jason
    Joined: Sep 18, 2012
    Posts: 4,515

    Nailhead Jason
    Member

    Those look an awful lot like they have been modified for 49 to 54 chevy hubs and brakes. I've seen it done a few times. never could understand why anyone would want that but I have seen it.
     
  9. Dave G in Gansevoort
    Joined: Mar 28, 2019
    Posts: 3,744

    Dave G in Gansevoort
    Member
    from Upstate NY

    Yeah I should have used a better ruler. I used an old drafting ruler and didn't think about the seal area. The ruler is 1/2 inch longer... so 5.5 inch. DOH!

    Those spindles I have are bone stock round back spindles.
     
    dana barlow likes this.
  10. DG Racing
    Joined: Dec 11, 2009
    Posts: 50

    DG Racing
    Member

    this is the other side
     

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  11. DG Racing
    Joined: Dec 11, 2009
    Posts: 50

    DG Racing
    Member

    its possible i have a 1953 car in the yard so i will try to install the brakes from my 1953 chevy
     
  12. DG Racing
    Joined: Dec 11, 2009
    Posts: 50

    DG Racing
    Member

    ok my father ad a jobber spindle 1940 style and yes its 5 7/16 long compare to my original at 4 5/8 so they are not good for me .

    thanks everybody for your answers .
     

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