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Straight Axle/Cross Steering Set Up Do and Dont's

Discussion in 'The Hokey Ass Message Board' started by FunnyCar65, Nov 13, 2010.

  1. FunnyCar65
    Joined: Mar 11, 2007
    Posts: 2,010

    FunnyCar65
    Member
    from Colorado

    I'd like to start a end all tell all thread on straight axles set up with cross steering.Whats the best way, best parts to use.Input by those that have done it with success please.
     
    Last edited: Nov 14, 2010
  2. hillbilly4008
    Joined: Feb 13, 2009
    Posts: 2,553

    hillbilly4008
    Member
    from Rome NY

    man i read this title to fast, i thought it read "Straight Axle/ Cross Steering Set Up To Do Doughnuts"
     
  3. FunnyCar65
    Joined: Mar 11, 2007
    Posts: 2,010

    FunnyCar65
    Member
    from Colorado

    Any tech tips and or photos of the proper way to set up the drag link to prevent bump steer?
     
  4. Hi,I know you want the pitman arm level so ya don't create bumpsteer.Also,I set up the axle so the kingpin inclination was 7 degrees back at the top.
     
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  5. lawman
    Joined: Sep 19, 2006
    Posts: 2,632

    lawman
    Member

    her are a few pics of a cross steer and Vega box on a 51 chevy truck frame and 38 Chevy cab. Hope these help.Tom (Tired Old Man)
     

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  6. RAY With
    Joined: Mar 15, 2009
    Posts: 3,128

    RAY With
    Member

    Totally agree -Bump steer on a straight axle is lethal to your health
     
  7. Rpmrex
    Joined: Nov 19, 2007
    Posts: 658

    Rpmrex
    Member
    from Indiana

    You'll want a pan hard bar on cross steer.
     
  8. porknbeaner
    Joined: Sep 12, 2003
    Posts: 25,850

    porknbeaner
    Member

    Actually a panhard bare is a good idea on any setup. But I see it as a necessity on a cross steer.
     
  9. So true on the panhard bar!!! I forgot to mention that!
     
  10. FunnyCar65
    Joined: Mar 11, 2007
    Posts: 2,010

    FunnyCar65
    Member
    from Colorado

    This is the kinda info I'm after.I see alot of parallel leaf spring set ups with out a panhard?
     
  11. GARY T.
    Joined: Mar 23, 2008
    Posts: 1,840

    GARY T.
    ALLIANCE MEMBER
    from S.W. Pa

    Anybody got a pic of one with a panhard bar ---wheres the best places to attache it so it ain't ugly?
     
  12. Martys 55
    Joined: Mar 12, 2007
    Posts: 41

    Martys 55
    Member

    heres a pic of mine not the best pic i will take a couple for you this week marty
     

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  13. KrisKustomPaint
    Joined: Apr 20, 2007
    Posts: 1,106

    KrisKustomPaint
    Member

    The dead spring perch looks like a tidy alternative to a panhard bar.
     
  14. Model A John
    Joined: Apr 24, 2008
    Posts: 1,668

    Model A John
    Member
    from wichita ks

    If you have parallel leaf springs, you don't need a panhard bar. My Chevy II is set up that way with a Speedway kit.
     
  15. C/Gas55
    Joined: Mar 21, 2006
    Posts: 134

    C/Gas55
    Member

    Parallel leafs should not run perfectly "parallel" to each other. If they do, you will need a panhard bar.
     
  16. porknbeaner
    Joined: Sep 12, 2003
    Posts: 25,850

    porknbeaner
    Member

    A pan hard bar is kind of like a backyard sway bar. No before some ass hat tires to say I said it was a sway bar I did not say it was or is a sway bar. So we can overcome that little bit of drama before it starts.

    I helps keep everything in line. Leaf springs have some lateral strength by nature but they are designed to go up and down. The pan hard bar keeps it from swaying from side to side. On any steering setup your steering box for all intents and purposes is stationary if the suspension moves to the side and the steering box doesn't move with it something has to give. Normally your wheels turn to make up for the difference. It is more acute on a car with cross steer; where the steering box is solid in the chassis and the link reaches across to cause the wheels to turn when it is moved.

    So if you use something to keep your suspension from moving from side to side you limit that motion. A properly set up pan hard bar will accomplish that. Build it so that at rest it is level or nearly level. A good idea also is to make the panhard bar as long as possible. That way it swings a longer smother arc and the motion of the suspension doesn't affect it as much.

    Actually a watts link works even better but it does take some engineering. Might look for someone who has built one or knows the geometry of one to help you out or draw you a picture if you decide to go that route.
     
  17. Porknbeaner,

    Which side of the frame should a pan hard bar be mounted to? I seem to recall reading somewhere that it should be attached to the DRIVERS SIDE of the frame.
     
  18. KrisKustomPaint
    Joined: Apr 20, 2007
    Posts: 1,106

    KrisKustomPaint
    Member

    It makes no difference, unless something is in the way.
     

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