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Will it Hold

Discussion in 'Early CJ5 and CJ6 Tech' started by johnsotd, Sep 30, 2008.

  1. Sep 30, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
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    When replacing my front drive axels with a pair of Spicers that I got from Jim I stripped two of the female threads on the left knuckle when putting the spindle on. I rethreaded the holes 7/16 and torqued everything to 25fp. One of the 7/16 holes stripped again and would not tighten with the lock washer on. I took the lock washer off and used red thread sealer and it torqued to 25fp.
    Will it hold without the lock washer?
    Thanks,
    Tommy
     
  2. Sep 30, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    I'd rather see you turn that bolt around if possible and put a nut on it.
    or maybe get a 7/16 diam button head and come from the inside with a nut as well.
    you really need all the strength you can get there.
    I suppose in a pinch you could even run a 5/16 bolt thru the backside and nut that as well.
     
  3. Oct 1, 2008
    sdcj6

    sdcj6 Sponsor

    San Diego
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    366
    Put the spindle on without the bolts and rotate it about 20 degrees and redrill and tap all holes. I would put short setscrews in the old holes with locktite.
     
  4. Oct 1, 2008
    cabover

    cabover Member

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    PLEASE Buy yourself a new knuckle. They don't cost that much. Besides what is your life worth and the lives of the people around you?.
    Be safe Be happy
     
  5. Oct 1, 2008
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
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  6. Oct 1, 2008
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    :iagree:
     
  7. Oct 1, 2008
    Corveeper

    Corveeper Member

    Chanute, Kansas
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    X2 what Lynn posted.
     
  8. Oct 1, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
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    Apr 23, 2006
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    I was hoping not to have to remove the knuckle because everything is new and set to spec.
    Can a buttonhead screw be installed from the inside with the axle removed???
    Tommy
     
  9. Oct 1, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    depends
    on the position of which one is damaged
    not all hole surfaces on the back side are level
    that's where the spot checking comes in for a flat surface for the bolt head to rest against
    which one is damaged ?
     
  10. Oct 1, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
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    I read the tech articles. Sure wish there were some photos.
    9 o'clock has been rethreaded w/ 9/16 and seems to hold with 25fp. of torque.
    1:30 is the one needing the screw from the backside. I could not find a button head so I bought a socket head with the thought of grinding it down.
    I am using Commando knuckles to accommmodate dual tie rods. This issue is on the driver side and I have a regular CJ knuckle that looks a little different but I believe measures the same. Should work, huh?
    Can a knucke be brazed and re-tapped???
    I hate to ask dumb questions but I really appreciate the help.
    Tommy
     
  11. Oct 1, 2008
    Chilly

    Chilly Active Member

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    Braze just isn't going to cut it. Not strong enough. You'd pull the threads out, I think.

    Bad threads in cast iron can be fixed, though with a thin casting it might not work as well. But the idea is you overdrill the hole. Maybe for this application you'd drill and tap a 3/4" hole. Then you'd run a die over a chunk of cast iron bar. Thread it into the casting with the meanest, baddest, most permanent type of threadlocker available. I'm talking special order stuff here. Mill the front flat, drill, retap. Too much work for what you're doing, though.
     
  12. Oct 1, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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  13. Oct 1, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
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    Thanks for the article, Jim. I just sandblasted another knuckle but I prefer to use the current one so I will get some 3/8" button head screws tomorrow and see if I can fix it. I'm thinking that brazing and retapping using button head screws from the back should work. What say you???
    Tommy
     
  14. Oct 1, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    I don't know how you're planning to use the Jeep, off-road or otherwise.
    It's also much easier to do this work at your convenience, taking your time, in your own garage or workshop,
    rather than along the highway somewhere, or out in the boonies....been there, done that.
    If you're going to be pulling the knuckle off anyway, I'd say replace it; it's just not worth taking a chance, and having to do it all over again. ( or do the knuckle stud conversion on all holes for the knuckle)
    Good used knuckles are easy to find; since it's the driver side, nothing special about that knuckle. You might run across different styles and thickness of arms, but they are pretty much all the same.
    9/16" hole diameter is getting pretty thin in material next to the edge of the knuckle.
    I vote for fix it right the first time, and no more worries or concerns.
    not what you wanted to hear.........but that's my opinion.
     
  15. Oct 1, 2008
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    Tommy not sure where your at ,but I have a D27 that I could pull the knuckles off if you need them...
    Jim S.
     
  16. Oct 1, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    Louisiana
    did I spell that right ?

    edit: yes I did
     
  17. Oct 1, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
    Joined:
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    Thanks to all. I have been convinced to use a spate knuckle and do the button head conversion.
    Should I go back and retorque the right side to 35fp or is the 25fp OK?
    This photo shows the difference between the Commando knuckle(R),being replaced, and the CJ knuckle(L). Is there any reason that the knuckle on the left won't work???
    Tommy
    [​IMG]
     
  18. Oct 1, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    nope
    as long as it's the same side
     
  19. Oct 9, 2008
    johnsotd

    johnsotd Member

    Senatobia, MS
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    Just a final follow-up.
    After stripping the threads on TWO different knuckles ( both at 30FP ) I went back to my original knuckle and brazed the holes that were stripped and rethreaded them. I used 1 1/4" buttonhead screws from the inside. torqued them down tight with red thread locker and did a light braze on the head of the two screws in the repaired holes. I used nuts and lockwashers and torqued to 30FP.
    Everything seems to be OK but the question remains--- Will it hold?
    Tommy

    [​IMG]

    [​IMG]

    [​IMG]
     
  20. Oct 9, 2008
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    ought to do the trick
     
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