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Technical Front pan hard bar

Discussion in 'The Hokey Ass Message Board' started by dirt t, Dec 30, 2021.

  1. I have a 1930 CCPU with a dropped axle and posie front spring. Wilwood disc brakes. What I have come to realize is that a panhard bar is needed.
    My son had a new top put on and the seat upholstered. He lives in Vegas .
    I drove it home and at 70 mph it was a hand full. Is there anything special as it has 4 bar front suspension?
    Thanks for your time.
    Terry aka dirt t
  2. Pete Eastwood
    Joined: Jul 27, 2011
    Posts: 1,105

    Pete Eastwood
    from california

    Get yourself a " Pete & Jake's " catalog .
    read the first several pages and you'll learn about panhard bars & their function .
    Pete & Jake's will likey have the parts you'll need .
    ottoman, seb fontana, MMM1693 and 6 others like this.
  3. redo32
    Joined: Jul 16, 2008
    Posts: 1,948


    Shall we presume it has standard street rod stuff under it? What steering box? Are all the tie rod ends in good shape? Kingpins tight and greased? Pete and Jake and others have a kit that will bolt on the batwing, not sure if they have a bolt on frame bracket. Most the ones I have seen are weld on.
  4. Blake 27
    Joined: Apr 10, 2016
    Posts: 1,206

    Blake 27

    It sounds like more than just the need for a pan hard bar. I agree with redo32, a visit to an alignment shop should tell you a lot.
    bchctybob likes this.

  5. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,607


    If it has a steering box that uses a drag link that goes under the engine to the passenger side spindle and it doesn’t have a Panhard bar, yes it definitely needs one.
    If the drag link runs front to back and connects to the left front spindle your problem probably lies with loose or worn front end components, alignment or bad tires.
    Blues4U and mad mikey like this.
  6. 19Eddy30
    Joined: Mar 27, 2011
    Posts: 1,435

    from VA

    You did not mention what you experience except a handful ,
    Pan bar can aluminate death wobble.
    Toe & caster needs to be checked,
    Caster needs to be set @ ride height
    to/ on the ground, 5-7 degrees.

    Tires & wheel combo ?

    also does it have Fenders & a none hole Visor,, if so wants you get the suspension worked out A's Over 100 mph can start to move around ,
    I have no experience with a truck but I would think before 100 mph.
    My 32 with Fenders None chop is stable up to 145-150, then little Rocky. With out fenders stable @ 150
    Last edited: Dec 30, 2021
    mad mikey, alanp561 and stillrunners like this.
  7. hemihotrod66
    Joined: May 5, 2019
    Posts: 595


    My car has cross steering and doesn't have a panhard bar....I have no issues with it and it does okay at 120mph..... 1/8 inch toe end and 5 degree positive caster....Never checked the camber because I won't bend a cast axle....
  8. 6 * caster new parts(tie rod ends.)
    Cross steering. Unisteer box.
  9. Thank you for your replies.
  10. I run a Pete and Jakes pan hard bar on the drag coupe. Car has seen 150+ no issue's that are scary.
    Dino 64 and Bandit Billy like this.
  11. blowby
    Joined: Dec 27, 2012
    Posts: 8,293

    from Nicasio Ca

    Just to provide a bit of history, or perhaps save someone form losing a bar room bet, the Panhard (one word, nothing to do with pans or hardness) bar is named after Renee Panhard, of the Panhard Automobile Company.

    Today the only use of the name Panhard is in the Panhard rod (also called Panhard bar), a suspension link invented by Panhard that provides lateral location of the axle. This device has been widely used on other automobiles or as an aftermarket upgrade to rear axles for vintage American cars.
    Last edited: Dec 31, 2021
    Hamtown Al and dirt t like this.
  12. That's awsome information.
    Thank you.
    I've learned something new.
  13. A lot of opinions on this subject. One opinion is that if you are running 4 bar front end with cross steer is that you must have a pan hard bar to eliminate side to side movement.
    Dino 64 likes this.
  14. bchctybob
    Joined: Sep 18, 2011
    Posts: 3,607


    Early Ford transverse spring front ends can work with cross steering and no Panhard bar, I drove my ‘32 5w with a Vega box like that for a while. But visualize how the front spring and the axle are connected. Unloaded, it’s like a porch swing. It’s better when loaded but it’s still a place for unwanted side motion. A long Panhard bar stops that motion and in most cases gives the steering a more positive feel.
    Dino 64 and Hamtown Al like this.
  15. 1971BB427
    Joined: Mar 6, 2010
    Posts: 7,261

    from Oregon

    You never mentioned how it's sprung? Is it the typical transverse spring setup?
    mad mikey likes this.
  16. 4" dropped axle, 2" lowered posie spring
    And 1 inch lowered crossmember.
    Rear is Qai coil over shocks.
    8" Maverick rear end.
    Joined: Jun 6, 2007
    Posts: 4,175


    You need one
    I have a tub with similar components.
    I need one!
    Mine is made and ready to be installed. But I drive without it and am just aware of its quirky behavior on turns especially.

    Keep the bar as close to horizontal as possible at loaded weight.
  18. What are you asking for it?
    Thank you for your reply.
    Terry aka dirt t
  19. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 8,707

    Bandit Billy

    The scary part for my car at 150 would be the poo I was sliding around on in the drivers seat. :cool:
  20. Damn Billy, you just made me laugh so hard I had beer coming out my nose.:eek: Happy New Year buddy.:)
    HemiDeuce likes this.
  21. jaw22w
    Joined: Mar 2, 2013
    Posts: 1,451

    from Indiana

    Ohhh Noooo! Skidmarks!
    mad mikey likes this.
  22. krylon32
    Joined: Jan 29, 2006
    Posts: 7,918

    Alliance Vendor
    from Nebraska

    Built 100's of cross steer chassis and one never left the shop without a panard
    Just Gary and mad mikey like this.
  23. hudson48
    Joined: Oct 16, 2007
    Posts: 2,968


    My 32 roadster does not have one and have thought of adding one for better front end stability even though it does handle well. So for RH steering I think I read that you do the reverse of what is in the Pete & Jake diagram.
    acme30 likes this.
  24. Rramjet1
    Joined: Mar 13, 2018
    Posts: 207


    There is such a thing as a dead spring perch that goes in place of one spring perch that is supposed to act as a panhard bar. Never used one so can’t comment on its effectiveness.
  25. acme30
    Joined: Jun 13, 2011
    Posts: 198

    from Australia

    Yes I believe you are correct. From what I have read the bracket that is welded to the chassis (front or rear) should be welded on the same side that your cross steering box is mounted to. I have seen a number of right hand drive vehicles set up with right hand cross steering - but they then welded the rear panhard mount on the opposite side. As I understand it this combination can set up some interesting handling at speed and cornering.

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