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31 A sedan axle width question

Discussion in 'The Hokey Ass Message Board' started by oldnuts, Apr 1, 2013.

  1. oldnuts
    Joined: Jan 14, 2009
    Posts: 355

    oldnuts
    Member
    from nebraska

    can someone tell me what is the narrowest rear alxe i will need for a 31 model A sedan on bags. sorry if its a dumb ass question but i dont have easy acces to my sedan to measure it
     
  2. the flatlander
    Joined: Apr 29, 2004
    Posts: 603

    the flatlander
    Member

    fifty five inches flange to flange (thats outside to outside) you might get by w/ a Maverick rear 56.5" and all depends on wheel width & backspacing too ?? good luck
     
  3. oldnuts
    Joined: Jan 14, 2009
    Posts: 355

    oldnuts
    Member
    from nebraska

    By outside flange do you mean outside of drum or the end of the axle tube where the backing plates bolt to?


    Posted from the TJJ App for iPhone & iPad
     
  4. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,906

    need louvers ?
    Member

    ALWAYS wheel mounting surface to wheel mounting surface. Who ever started the backing plate to backing plate measurement needs to be neutered...
     

  5. carkiller
    Joined: Jun 12, 2002
    Posts: 849

    carkiller
    Member

    The norm is a 57-59 Ford car or first series 67-77 Bronco. Depands on your wheel bolt pattern you want as well. Cal
     
  6. Deuce Roadster
    Joined: Sep 8, 2002
    Posts: 9,519

    Deuce Roadster
    Member Emeritus

    Like already stated ...

    The V8 5 lug Maverick rear end is 56 inches. It is a 8 inch series Ford rear end. It is Measured from the wheel mounting surface to the wheel mounting surface :)

    [​IMG]

    For a 9 inch series rear end ... most go with a 66 - 77 Ford Bronco or a 57 - 59 Ford car rear end. They measure 58 inches.

    Some go with a 1983 to 2004 2 wheel drive S-10 rear end which is
    about 54 and 1/2 inches.

    The offset on the wheels you use REALLY affects what width you need.

    If not using fenders ... you can go a good bit wider easily.

    .
     
  7. oldnuts
    Joined: Jan 14, 2009
    Posts: 355

    oldnuts
    Member
    from nebraska

    Thanks guys. I've got a 9in that measures 55in backing plate to backing plate that's why I was confused.


    Posted from the TJJ App for iPhone & iPad
     
  8. rawcjw19
    Joined: Oct 8, 2012
    Posts: 581

    rawcjw19
    Member

    mine measures 58 wheel mounting surface. 4 inch back space wheels with no fenders looks like I will get by o.k. using the standard humped inner fender wells. I do believe a little narrower would be better
     
  9. [​IMG]


    This is not a real good photo but it is my '31 Sedan with a 9' from a '57 station wagon. I put it under there so many years ago I've forgotten the width. :confused:
     
  10. Bluedot
    Joined: Oct 26, 2011
    Posts: 326

    Bluedot
    Member

    Oldnuts, I think you'll be happy with 55". I went 55 1/2" on my coupe, wish I'd gone just slightly narrower. And like others have said, decide on wheels and tires before you commit. Measure measure measure, and if you can mock rear/wheels/tires up under the body before welding anything, you'll be sure before you invest a lot of work. Do overs suck.
     
  11. oldnuts
    Joined: Jan 14, 2009
    Posts: 355

    oldnuts
    Member
    from nebraska

    Thanks guys. I'm putting my A on airbags so the body will sit flat on the ground. The rear end I've got is out of a 64 ford f100.


    Posted from the TJJ App for iPhone & iPad
     
  12. Deuce Roadster
    Joined: Sep 8, 2002
    Posts: 9,519

    Deuce Roadster
    Member Emeritus

    Your 64 Ford F-100 rear end should be 60 inches W I D E :)
    With fenders ... too wide for most rodders taste. Without fenders ... good to go :D
     
  13. A Model A Tudor is wider above the rear axle than a coupe. Keep that in mind especially with airbags.
     

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