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UCA pivot bolt question

Discussion in 'Suspension' started by RacerP, May 18, 2012.

  1. May 18, 2012 at 8:03 AM
    #1
    RacerP

    RacerP [OP] Well-Known Member

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    I am trying to install some custom fabbed UCA's and the stock pivot bolt going thru the bushngs is not long enough.

    I know it's a 14mm, but, does anyone know if ones off a Tundra or Land Cruiser are any longer than the Tacoma ones? I did call the local dealer and they don't have any in stock to compare it to.

    The best I have been able to come up with is some threaded rod from Fastenal and use lock nuts on both ends?

    From the pictures I am assuming I don't have enough thread to be safe? Perhaps get rid of the flange nut and just go with a regular lock nut?

    [​IMG]

    [​IMG]
     
  2. May 18, 2012 at 8:22 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Dont use a fully threaded rod. It doesnt have the required shear strength. And Yes, You need more thread showing.
     
  3. May 18, 2012 at 8:25 AM
    #3
    RacerP

    RacerP [OP] Well-Known Member

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    What would be an alternative solution? As far as I can search no one carries a 14mm bolt that long? Unless a Tundra or Land Cruiser bolt is 14mm and slightly longer?
     
  4. May 18, 2012 at 8:43 AM
    #4
    RacerP

    RacerP [OP] Well-Known Member

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    And I just got off the phone with McMaster Carr and they have threaded rod in Grade 8. Isn't that the same as most suspension fasteners?
     
  5. May 18, 2012 at 8:47 AM
    #5
    medic2230

    medic2230 Ditch Doctor

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  6. May 18, 2012 at 8:51 AM
    #6
    RacerP

    RacerP [OP] Well-Known Member

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  7. May 18, 2012 at 8:53 AM
    #7
    medic2230

    medic2230 Ditch Doctor

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    Sorry, didn't notice the grade 5 at the bottom. I looked and saw the 8.8 above it.
     
  8. May 18, 2012 at 8:53 AM
    #8
    KenLyns

    KenLyns Lord of War

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    Loads on the UCA aren't that high, actually. Grade 5 will work, but you can't torque it to OEM specs. The Fastenal bolt has a plain finish, though, which will cause the bolt to rust out within one winter in Chicago.

    Do the outboard bushing flanges need to be that thick?

    Since the bolt is in shear, another solution is to use a jam nut. Only 7mm thick:
    http://www.fastenal.com/web/search/...2900|~ ~|sattr02:^Steel$|~ ~|sattr04:^Zinc$|~
     
  9. May 18, 2012 at 12:28 PM
    #9
    RacerP

    RacerP [OP] Well-Known Member

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    I was actually thinking about the jam nut. But, never thought about shaving off some of the flange on the bushing, there is plenty of meat on it.
     
  10. May 18, 2012 at 12:30 PM
    #10
    rondog

    rondog your TW web developer!

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    why dont you just order the oem bolt?
     
  11. May 18, 2012 at 12:39 PM
    #11
    RacerP

    RacerP [OP] Well-Known Member

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    That's what I have in there and it's not long enough. The way these were fabbed, the made the pivot housing extra wide.
     
  12. May 18, 2012 at 12:40 PM
    #12
    rondog

    rondog your TW web developer!

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    oh, gotcha..that's weird. Are they TC UCA?

    edit: nvm I see you said custom. I would try these guys too http://www.ababaqa.com/

    You can call them and if they don't have a long enough bolt in stock they can order you one. I've bought many bolts from them
     
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