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Technical what steering for a model A

Discussion in 'Traditional Hot Rods' started by sdluck, Dec 24, 2013.

  1. sdluck
    Joined: Sep 19, 2006
    Posts: 3,332

    sdluck
    Member

    I suggestion for a steering gearbox for my 1929 model A roadster full fender car that will let me still run radius rods.What are you guys running. I saw a VW bus box in a coupe looked good,what else.
     
  2. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,788

    tfeverfred
    Member Emeritus

    Vega box seems to be popular. I have a Corvair, but would prefer a Vega.
     
  3. others may disagree...depending on how your chassis is set up and the style of your build , a Vega box in cross steer can work great
     
  4. onekoolkat1950
    Joined: Mar 23, 2008
    Posts: 1,866

    onekoolkat1950
    Member

    I run a modified f1 box. It's like power steering for a model A.
     
  5. Groovybaby6
    Joined: Dec 29, 2008
    Posts: 929

    Groovybaby6
    Member
    from Denver

    I used a '46 to '48 Ford passenger car box, the cross steering is nice and those boxes are still pretty cheap. It fits right under the Fenton headers on the flathead.
     

    Attached Files:

  6. sdluck
    Joined: Sep 19, 2006
    Posts: 3,332

    sdluck
    Member

    I know the vega box will work,but didn't want cross steering and want to retain the hairpins.
     
  7. F-6Garagerat
    Joined: Apr 12, 2008
    Posts: 2,652

    F-6Garagerat
    Member

    I'm using an F1 but I'm fenderless
     
  8. b-bob
    Joined: Nov 4, 2008
    Posts: 1,097

    b-bob
    Member

    Vega works with hairpins.
     
  9. bgbdlinc
    Joined: Jan 11, 2002
    Posts: 522

    bgbdlinc
    Member

    ....I would****ume that the engine swap(?) will not allow you to use the stock bones and thus the hairpins?
     
  10. sdluck
    Joined: Sep 19, 2006
    Posts: 3,332

    sdluck
    Member

    It has a SBC in it now with some steering box that the hair pin is cut to clear.
     
  11. this would be a good time to post some pictures
     
  12. Russ B
    Joined: Jun 13, 2010
    Posts: 1,592

    Russ B
    Member

    the F-1 to 1956 F-100 pickups were popular in the '60s, I used it in my '29 tudor back then with split wishbones and a 327, and that is what I am using in the Model A I am building now.
     
  13. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,901

    need louvers ?
    Member


    So that takes you pretty much back to the F-1 stuff with the "A" end mount. As others have said, the Vega will work well with hair pins. A problem with the VW box that arises is that the pitman arm points up instead of down. With hairpins or split bones that makes you steering geometry almost impossible to set up correctly. Early Mustang boxes were used lots back in the seventies and eighties, but were commercially paired with a four bar front end for the same reason as the VW would work in the same situation, the pitman pointing up.

    Once again as others have said, time for some pictures of what you have.
     
  14. sdluck
    Joined: Sep 19, 2006
    Posts: 3,332

    sdluck
    Member

  15. Post #10 says "hairpin is cut to clear"?
    Not sure what you mean here. Where/how do you cut the hairpin??
     
  16. Gemmer III F1 boxes work great, if your lucky enough to find a 37 hudson box it's the same but puts the steering column at a lesser angle as it comes out of the top of the box as opposed to the f1 which comes out of the bottom
     
  17. Hitchhiker
    Joined: May 1, 2008
    Posts: 8,507

    Hitchhiker
    Member

    Hudson=$$$$$$
     
  18. Yip they sure are, I was lucky enough to pick one up, a guy sold one to me sight unseen as a f1 box, when it arrived he had it wrong and it turned out to be the elusive hudson number, to say I was stoked would be an understatement as I'd been looking for one for ages, also have a 37 Nash box which is the same but has a different mount. You guys think they are thin on the ground in the U.S try finding a r.h.d box over here in little old New Zealand..
     
  19. white64
    Joined: Sep 15, 2008
    Posts: 672

    white64
    Member
    from Maine

    I have an f-1 box with 46 passenger car gears in it, the ratio is a little quicker and it seems they see less wear than the truck gears.
     
  20. Turbo26T
    Joined: May 19, 2004
    Posts: 1,260

    Turbo26T
    Member

    Take a close look at this pic...(Can't for the life of me remember where I got it or I'd PM the O/Poster.)..anyway ,does this look like an F1 box,just mounted up and in the cowl/firewall area...I like the way the steering rod is nearly parallel with the hairpins...Trying to gather info/parts for my next build...just want to get the right stuff the first time...
     

    Attached Files:

  21. Bit hard to tell from that pic,******* cool looking car though..
     
  22. 40FordGuy
    Joined: Mar 24, 2008
    Posts: 2,907

    40FordGuy
    Member

    Ditto Vega

    4TTRUK
     
  23. need louvers ?
    Joined: Nov 20, 2008
    Posts: 12,901

    need louvers ?
    Member


    All well and good ascetically, but when you run hairpins and a drag link parallel like that you are inviting the demons of bump steer into your life.

    In a perfect world, your hinge point for the radius rod and the hinge point for the pitman arm should be at the exact same point. That way the whole shebang is traveling on the same plain and same arcs. As you raise the pitman arms hinge point, it creates a situation where now the hairpins are traveling on one arc, and the hinge point of the pitman arm are on another entirely... not good.

    I know we all see the cars running around with the cowl mount steering systems. You do have to know that with that look goes some negative. That type of steering was popular in mostly go straight kinda cars that had very little suspension movement or steering input, or roundy round cars that really only went one direction and had a whole 'nother batch of tuning built in for various other reasons - mostly to keep the car traveling left.

    About the only time the drag link running parallel is considered a virtue is when a four bar type front end is incorporated into the deal. You then go from two arcs converging on a single plane to three arcs on three separate pains, but all operating in a complimentary fashion.
     
  24. harleyjohn45
    Joined: Aug 27, 2012
    Posts: 190

    harleyjohn45
    Member

    62 corvair on a 30 roadster. modified to run off the left side spindle.
     
  25. crminal
    Joined: Jun 6, 2010
    Posts: 1,941

    crminal
    Member

    ImageUploadedByH.A.M.B.1388129696.612715.jpg
    F1 box attached with early VW bus mount
     
  26. fiftyv8
    Joined: Mar 11, 2007
    Posts: 5,401

    fiftyv8
    Member
    from CO & WA

  27. Turbo- Idk but that's a pretty clean setup if it fits under the foot well!!!
    Damn
     
  28. Turbo26T
    Joined: May 19, 2004
    Posts: 1,260

    Turbo26T
    Member

    31Vick: That is a very clean setup..

    NeedLouvers : I was planning on 4 link setup and I do understand different arcs of travel.
    I was just interested in the type of steering box. Thanks for the input.
     
  29. I see the arcs of travel being really close on a straight road. Certainly not a drastic problem causing set up.

    It will be Identical turning right and off when turning left.
     

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