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Pitman arm help. F-1 box/32 frame

Discussion in 'The Hokey Ass Message Board' started by 67cst, Dec 3, 2012.

  1. 67cst
    Joined: Oct 7, 2005
    Posts: 109

    67cst
    Member

    Just wondering if anyone has run into this problem I am having. I am using a f1 box on my coupe project with a 32 frame. I was/am hoping to use a wedge that I made but what's happening now is the splines don't completely stick through the frame because of the wedge. When I tighten then nut that holds the pitman arm on it bottoms out against the frame. I know the right way to do this is to cut the flange off and weld a new one on at the correct angle, but I thought I'd try this first since the f100 boxes seem to work with the wedge. It seems that I still have a fair bit of spline exposed. Can I make a spacer to slide over the shaft so my pitman arm bottoms out on it before then frame? Thx guys.
     
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 19,984

    alchemy
    Member

    The splines are tapered, so they need to bottom to seat correctly. No, you can't space the arm out.

    Can you machine a little off the F1 flange at the correct angle? Basically doing what a wedge would do, but without it.
     
  3. Don's Hot Rods
    Joined: Oct 7, 2005
    Posts: 8,319

    Don's Hot Rods
    Member
    from florida

    You want as much of the splines to engage as possible and spacing the arm out isn't a great way to do it. I think you are going to have to bite the bullet and redo the flange, or switch to an F100 box.

    Don
     

  4. Yep I agree.tho I like the f1 over the f100
    It's not that bad to cut it.it's cast steel not cast iron.I cut mine and used model A flange on mine and angled it.made sure it had a deep valley for weld.it's been holding up in my car.

    One thing I did the first time is I cut into the shaft of the box , I had to get another box, cut the flange off right were its flat, then trim of the tip so to speek if you have to
     
  5. Deuce Daddy Don
    Joined: Apr 27, 2008
    Posts: 5,516

    Deuce Daddy Don
    ALLIANCE MEMBER

    I just used a wedge spacer for correct angle of steering shaft, mine is a 1953 Ford pickup unit, this has worked fine for 300,000 miles now.-----Don
     
  6. coopsdaddy
    Joined: Mar 7, 2007
    Posts: 883

    coopsdaddy
    Member
    from oklahoma

    Why do some cut and weld new flange on 56 f100 if the wedge works in a 33 frame, is it the same with a model a body on a 32?
     
  7. nzhotrod
    Joined: Oct 31, 2005
    Posts: 76

    nzhotrod
    Member
    from Auckland

  8. 67cst
    Joined: Oct 7, 2005
    Posts: 109

    67cst
    Member

    Thx for the feedback guys. NZ thanks for the link. I think I might look for the car steering box sector shaft, how much longer would you say it is over the stock f1 sector?
     
  9. alchemy
    Joined: Sep 27, 2002
    Posts: 19,984

    alchemy
    Member

    I understand the '48 car and the F1 sectors are the same PN.
     
  10. nzhotrod
    Joined: Oct 31, 2005
    Posts: 76

    nzhotrod
    Member
    from Auckland

    Alchemy is right....the LHD car and LHD F1 are the same length....the RHD F1 are slightly shorter than the cars, this is for clearance around the starter.
     
  11. Machined the box!
     

    Attached Files:

  12. Junk Hunter
    Joined: Feb 1, 2010
    Posts: 290

    Junk Hunter
    Member
    from The Ozarks

    I read this thread yesterday and it bugged me all night while I was working on my A.

    I have a '32 frame and a F1 box with stock flange. It's a little tight but mine seems to fit fine. My first thought was that my pitman wasn't set all the way on the spline of the sector shaft...but I checked it out and it is seated fine. Maybe the tapered spline is cut shallower on the shaft allowing the arm to seat further out?? I dunno.
     

    Attached Files:

    Last edited: Dec 4, 2012
  13. coopsdaddy
    Joined: Mar 7, 2007
    Posts: 883

    coopsdaddy
    Member
    from oklahoma

    Does the wedge work with the f100?
     
  14. Atwater Mike
    Joined: May 31, 2002
    Posts: 11,625

    Atwater Mike
    Member

    Yes. That was what the originals were designed for, as they had plenty of sector length...
    Only problem was the angle (and size) of the flange, thus the wedge.

    I'm wondering if a post-'48 passenger car sector would also fit the F1 box...they are longer yet. (many Gemmer parts interchange, seem to be standardized in shaft diameters
    and bearings)
     
  15. HotRodMicky
    Joined: Oct 14, 2001
    Posts: 1,783

    HotRodMicky
    Member



    Cool idea!
     

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