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king pin threads pulled out, HELP?

Discussion in 'The Garage' started by great scott, Apr 19, 2004.

  1. great scott

    great scott 1/2 ton status

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    I noticed while at easter safari that I had some play from the wheel to the tires. So I did an inspection and found bad tie rod ends and king pin bushings on my D60 with cross over high steer. Now that those parts are in my hands I started to replace them and found the drvers side king pin threads are pulled clean out. How do I fix this, and what may have caused it?
     
  2. 1-ton

    1-ton 1/2 ton status Premium Member

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    You might want to post this question on the "OffRoad Design" forum.
     
  3. willyswanter

    willyswanter 1/2 ton status GMOTM Winner

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    So the threads are pulled out of the inner C eh? Guess it's time for a new one... See them on ebay for under $100 usually.
     
  4. az-k5

    az-k5 1/2 ton status

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    that sucks.
    Ya, sounds like a new c is in order (unless you are really good at brazing and tapping). Just measure the pitch with a degree finder, grind the weld off for 45mins and have a good weldor weld the new one on.
     
  5. great scott

    great scott 1/2 ton status

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    Tell me theres a better way, maybe a great big heili coil or an oversized king pin. What about welding the pin to the C. Of corse I had no idea a new C was only 100$, thats a lot better then I was thinking.
     
  6. bluejeep

    bluejeep 1/2 ton status

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    DEDENBEAR
     
  7. Stephen

    Stephen 1/2 ton status Moderator Vendor

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    Big helicoil would be my 1st choice, but we carry the dedenbear knuckles and can get the axle ends for you, but they're not $100, more like $250 but I don't remember for sure. That's a major inconvenience, to say the least.
     
  8. great scott

    great scott 1/2 ton status

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    I think all try the helicoil (if I can find them) first. I just dont have that kind of cash. Any ideas on what may have caused this.
     
  9. Nonesuch

    Nonesuch 1/2 ton status

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    Improper torque and lack of locktite on the king pin would be my guess. I bet it loosened it self up and the stress of the knuckle caused the coarse threaded kingpin to start chewing away at the threads in the C.
     
  10. great scott

    great scott 1/2 ton status

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    I cant find a helicoil that big, bummer. As for it lossening and wipping out the threads its possible.
     
  11. Blazer1970

    Blazer1970 1/2 ton status

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    A machine shop should be able to fix that for you. I would check around. They could weld in a sleeve and re-cut the threads if there is enough material in that area. It may or may not be a lot cheaper than a new "C", but it is worth checking. Another possibility would be to drill and tap oversize, then thread in a plug, then redrill and tap. Where I used to work, we could get very creative to avoid scrapping a $50,000 part because of a machining error. Not to mention throwing our assembly/delivery schedule out the window.
     
  12. earl87gta

    earl87gta 1/2 ton status

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    Improper torque I had to just torque mine down at best I could with a cheater bar the torque on those things is like 600 FLBs and I dont know many wrenches that go that high.
     
  13. Nonesuch

    Nonesuch 1/2 ton status

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    You are correct about this. I just torqued mine down until the point where I thought I would break the 3/4" ratchet attached to a 6' cheater pipe. I used a massive amount of red Locktite to ensure it doesn't back out. I used the 6' cheater to remove the old ones too. It sounded like I broke the C off the axle tube when the kingpin broke free. I also fell on my ass about 4' from where I was originaly standing.
     
  14. great scott

    great scott 1/2 ton status

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    All try a couple of machine shops today.
     

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