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Technical Dog bone shock links

Discussion in 'Traditional Hot Rods' started by Mike Paul, Jun 4, 2017.

  1. Mike Paul
    Joined: Oct 10, 2003
    Posts: 1,038

    Mike Paul
    Member

    IMG_1626.JPG IMG_1625.JPG I'm wondering if anyone has ever had any success sectioning these dog bone shock links. I don't like the angle of the shock arm on mine and also I will run out of shock travel if the suspension bottoms out. I'd like to take out an inch or so and just use one bolt to hold it together. I'm ***uming they are cast and skeptical on how they would weld. Thanks in advance
     
  2. flatford39
    Joined: Dec 3, 2006
    Posts: 2,799

    flatford39
    Member

    Yeah what you have there isn't going to work. Whose spring perches are those. Looks like a Model A frame. I would look for Model A perches. That's quite the notch you have in the frame too. Not sure why you did that??
     
  3. fourspd2quad
    Joined: Jul 6, 2006
    Posts: 938

    fourspd2quad
    ALLIANCE MEMBER

    I think they are stamped steel. I had to make mine a bit longer for my custom application and they welded fine.
     
  4. Mike Paul
    Joined: Oct 10, 2003
    Posts: 1,038

    Mike Paul
    Member

    They are original '32 perches with the mechanical brake mount cut off. The frame rails are '32 and the notch is for spring clearance because it has a flat front X-member to lower the front.
     
  5. I don't think you will ever get the correct geometry given the location of the shocks and the lowering.
     
  6. X38
    Joined: Feb 27, 2005
    Posts: 17,498

    X38
    Member

    Move the shock bodies up. A lot.
     
  7. Manager
    Joined: Mar 22, 2014
    Posts: 238

    Manager
    Member

    Last edited: Jun 4, 2017
  8. Model A perch pins have a shorter shock mount, check them out.
    Al.
     
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  9. fourspd2quad
    Joined: Jul 6, 2006
    Posts: 938

    fourspd2quad
    ALLIANCE MEMBER

    What would happen if he just moved the shock back until the link and shock arm were nearly horizontal? It may look odd and perhaps premature wear of the rubber inside the links?
     
  10. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,279

    mgtstumpy
    Member

    Looks as though it is sitting on wheels with spring loaded, yet the shackles are not where they should be at 45 degrees. You also need to determine where shock is at full compression and full extension in relation to mounting points on axle once ride height is established. Get that sorted first as everything will need to be redone later to correct if not done now otherwise I can see shock bottoming out and something being bent or broken.
     
    X38 likes this.
  11. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,788

    tfeverfred
    Member Emeritus

    That notch in the frame just doesn't seem right, for some reason.
     
    mike bowling likes this.
  12. Mike Paul
    Joined: Oct 10, 2003
    Posts: 1,038

    Mike Paul
    Member

    Fred, what about the notch doesn't seem right? Just curious if you see an issue I don't and I would like to correct it now. Thanks
     
  13. Mike Paul
    Joined: Oct 10, 2003
    Posts: 1,038

    Mike Paul
    Member

    In this pic you can see how flat the front X-member is. Thus the need for the notch and the cause of my shock issue IMG_1478.JPG
     
  14. Bill Nabors
    Joined: Jul 24, 2011
    Posts: 283

    Bill Nabors
    Member

    I have used lever type shocks and I prefer to have my shocks back and the attachments on the radius rods. That allows the levers to be level. The one that I am setting up now will have attachment on the inside of the rods. This also helps the front look less busy
     
  15. flt-blk
    Joined: Jun 25, 2002
    Posts: 4,941

    flt-blk
    Member
    from IL

    I don't see any problem taking a section out of the dogbone.
    Can you just rotate the shock to center the movement and re mount it to the frame rail?

    I also don't see any problem with your crossmember notch, it's not like there is any weight in front of the crossmember.
     
  16. Mike Paul
    Joined: Oct 10, 2003
    Posts: 1,038

    Mike Paul
    Member

    IMG_1631.JPG IMG_1628.JPG IMG_1629.JPG
    I'll probably end up moving the shock up a couple inches and getting some shorty dog bone links. I'm not to hot on the idea cause I think it takes a little away from the lines of the frame. Here's some mock up pics
     
  17. tfeverfred
    Joined: Nov 11, 2006
    Posts: 15,788

    tfeverfred
    Member Emeritus

    The pic you posted explains it. I'd just never seen someone notch the frame for clearance.
     
    mike bowling likes this.
  18. A c notch in the rails for spring travel is about as common as sliced bread guys
     
  19. And yes, you can section the dogbones
     
  20. Kilroy
    Joined: Aug 2, 2001
    Posts: 3,232

    Kilroy
    Member
    from Orange, Ca

    That might work... You're only talking about a few inches travel, so you don't need a link that long to compensate for the arch of the shock arm...
    I think I would have just moved the shock back a bit so the arm was under the perch and you had like a 60 degree down angle to the link and arm, respectively... Again, because there's only a couple inches of travel there, I doubt the link would ever contact the spring.

    As for the notch... A notch is fine, but again with the travel involved here, I don't think you need one that deep. They're usually no more than 3/4" from what I've seen.
    That said, you probably aren't going to have anything heavier than a license plate riding on the end of those frame horns, so it's probably not a big deal either way.
     
    Last edited: Jun 7, 2017
  21. mike bowling
    Joined: Jan 1, 2013
    Posts: 3,559

    mike bowling
    Member

    Never seen it before; but I'm still pretty new to this.
    Somehow cutting out half the frame with the motor sitting on top makes me nervous.
     
    V8-m and tfeverfred like this.
  22. What if you rotated the shock 90 degrees so 1 bolt went through the frame. You could re-clock the arm and get creative for the fluid fill.
     

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