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Who says RAT RODS are unsafe? (TECH...sorta)

Discussion in 'The Hokey Ass Message Board' started by TINGLER, May 4, 2005.

  1. TINGLER
    Joined: Nov 6, 2002
    Posts: 3,410

    TINGLER

    ...................
     
    Last edited: Nov 3, 2010
  2. jalopy43
    Joined: Jan 12, 2002
    Posts: 3,085

    jalopy43
    Member Emeritus

    Looks plenty beefy,and safe. Good job. I can't wait to see it in person,and maybe even race ya!:D Sparky Poor BoysCC,TN
     
  3. jalopy43
    Joined: Jan 12, 2002
    Posts: 3,085

    jalopy43
    Member Emeritus

    I win by default?? Thanks, that was easy!! Anyone else?:D Spark**
     
  4. Brooding Swede
    Joined: Feb 5, 2003
    Posts: 406

    Brooding Swede
    Member

    Hey, looks great!!! and to think I was stupid enought to go out for a test drive with you...HEHEHE...
     
  5. InDaShop
    Joined: Aug 15, 2004
    Posts: 2,796

    InDaShop
    Member
    from Houston

    Oh yummy bootyfab-a-licious!

    Call me picky here, but I know offroad crossover steering, and a 3/8" mild steel plate gussetted on the far spindle end ain't going to cut it on the highway. Your steering arm is going to deflect up and down as you steer and as you hit potholes, etc. Eventually fatigueing, then failing. At the minimum run a second gusset in the rear like you did the front, then box that area above the two mounting bolts. Now you need to run a gusset up from the back of this box to the underside of your "Flat" steering arm. That will fix it. Props for definately going with the best design possible, it looks good, just needs some finishing refinement.
     
  6. Brooding Swede
    Joined: Feb 5, 2003
    Posts: 406

    Brooding Swede
    Member

    P.S. man i hope thats primer? PAINT IT BLACK.. asap....


     
  7. ratster
    Joined: Sep 23, 2001
    Posts: 3,629

    ratster
    Member

    RAT RODS ****!

    Glad to see your back on the road. paint the bracket black,lol
     
  8. Morrisman
    Joined: Dec 9, 2003
    Posts: 1,602

    Morrisman
    Member
    from England

    Looks good, but I'd like to see some more depth to the flat strip arm really. Maye a little triangulation.

    Oh, and get rid of the ***got pink paint :)
     
  9. prime mover
    Joined: Dec 6, 2002
    Posts: 827

    prime mover
    Member

    is that tie rod tapered? if it is how did you get around that?
     
  10. Mike
    Joined: Mar 5, 2001
    Posts: 3,539

    Mike
    Member

    Steering arm looks pretty good. Very similar to the set up on my g***er.
     
  11. Ain't it amazing what a difference it makes when a few basic design rules are adhered to ? :D

    Steering arm should be fine BTW !
     
  12. joeycarpunk
    Joined: Jun 21, 2004
    Posts: 4,446

    joeycarpunk
    Member
    from MN,USA

    I don't think that steering arm is going anywhere. Looks good to me.
     
  13. harry fabricator
    Joined: Mar 18, 2005
    Posts: 52

    harry fabricator
    Member

    the big thing is that one steerin arm is welded , and most states and provinces weldin on steerin components is against the law and if it fails your liable . not really worth the risk . my two cents
     
  14. fastfrankie73
    Joined: Apr 14, 2005
    Posts: 450

    fastfrankie73
    Member

    Thats definately not going anywhere its plenty safe.
     
  15. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    Well...Unfortunately I have to agree with InDaShop...sorta. Sorry.

    The problem as I see it is you spaced the flat steering arm too far above the spindle attachment bolts and this will cause fatigue problems, not only with the arm but with the two bolts themselves.

    From what I can see in the pics, (which DO sometimes screw up perspective...) I would have loosened the tierod end at the drag link, turned it to point downward and then fabbed the steering arm closer to the spindle mounting bolts. The actual pivot location of the tierod end would still be in the same place but the height of the steering arm would be greatly reduced, allowing the top bar of the steering arm to be welded very close to the spindle bolt location or even made from a single piece of plate bent in a press brake.
    That way the strain on the bolts will be in a straighter line and excessive gusseting won't be needed.

    Gusseting what you have now will limit some potential deflection and arm fatigue, but it WON'T relieve the stresses on the bolts.
    In my opinion, THATS the big issue here, and could result in total failure of the steering.

    No shame in redoing something you know...EVERYONE has to sometimes...8^(
    Sorry to have to rag on it but its a potential safety issue so it just wouldn't be right to say nothing...
     
  16. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    Like this version in the red instead of the green.
     
  17. Morrisman
    Joined: Dec 9, 2003
    Posts: 1,602

    Morrisman
    Member
    from England

    Maybe I'm a little paranoid, a little su****ious, a little wary, but them brackets you show do seem fairly simple and straightforward.

    Have someone look at your bracket while you saw to and fro on the steering wheel, and see if anything appears to flex, even just a tiny bit.
     
  18. TV
    Joined: Aug 28, 2002
    Posts: 1,451

    TV
    Member

    Yes, I would gusset the hell out of that bracket, not only up and down but also out the length of the steering arm on both sides. If you do it right it will look great. You can never be to safe when it comes to steering and brakes.--TV
     
  19. photoman
    Joined: Feb 6, 2004
    Posts: 406

    photoman
    Member
    from Texas



    Build it like a Mack truck. Then you wont have to worry about losing steering when you land back down from those wheelies. :)
     
  20. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member

    The bottom ones are dropped but they still align with the bolts to keep the stress reasonable. See how the arm aims directly at the bolt bosses?

    Harry Fabricator is right about the welded components...if you could make it from a prebent piece of steel plate it would be better. Not cheap angle iron mind you, a good piece of bent structural plate or even a section from a piece of rectangular tube would be the way to go.

    Don't sweat doing it over...ALL builders have a stash of completed cast-offs lying around...NOBODY nails everything on the first shot!
    I know I have a sizeable pile out back!!! Hahaha



    I guess someone needs to get Cole a box of Depends for tomorrow! ;)
     
  21. I guess I'll throw 2 cents worth also. I've never thought those Speedway arms were substantial enough, although I guess they'd be OK , I know I'd never put one on my, or anyone elses car.
     
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  23. skratch
    Joined: Dec 18, 2001
    Posts: 867

    skratch
    Member

    who says rat rod?i thought it was hot rod.

    SKRATCH
     
  24. Nice work...art-boy. :D Seriously.
     
  25. Ford Freak
    Joined: Jan 5, 2005
    Posts: 827

    Ford Freak
    Member

    Hey Tingler! Why do you have to run your arm over to the right side? Any reason you cant steer it off of the left front? Then you'd have a much shorter arm. No flexing. I'm thinking of doing it that way on my Falcon. I have the room,maybe you don't???

    Bernie
     
  26. Hackerbilt
    Joined: Aug 13, 2001
    Posts: 6,250

    Hackerbilt
    Member


    Bumpsteer due to the short link length and the potential to angle the draglink tierods beyond their limit as the suspension flexes would be my concern...but I've never tried to do it so who knows!
     

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