Could my king pins be bad?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 2013Maxx, Jun 13, 2019.

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  1. Jun 13, 2019 #1
    2013Maxx

    2013Maxx Light Load Member

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    My front axel shakes bad at 45-50mph and my tires are wearing weird. Truck is a 2013 ProStar.. Bad king pins? B924C5CA-4722-4621-A420-3111F43EFD35.jpeg 342BE017-45CF-42A1-9ABF-6D7B8D841EA8.jpeg 531D9077-4D85-43DC-9197-94F01EED8F03.jpeg 6686712B-526B-43B4-A546-4B4CDF53D021.jpeg
     
    2013Maxx, Jun 13, 2019
    2013Maxx, Jun 13, 2019
    #1
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  3. Jun 13, 2019 #2
    RustyBolt

    RustyBolt Road Train Member

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    It's possible. But just as likely, if not more so, alignment, shocks, or out of balance. Or any combination of those.
     
    RustyBolt, Jun 13, 2019
    RustyBolt, Jun 13, 2019
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  4. Jun 13, 2019 #3
    Bakerman

    Bakerman Road Train Member

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    Jack the front end off the ground, put a bar through the hole of the rim and try and lift it up.

    If you have play up and down then yes, possible you have bad king pins.
     
    Bakerman, Jun 13, 2019
    Bakerman, Jun 13, 2019
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  5. Jun 13, 2019 #4
    Michael 247

    Michael 247 Heavy Load Member

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    Check Toe Inn..
     
    Michael 247, Jun 13, 2019
    Michael 247, Jun 13, 2019
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  7. Jun 13, 2019 #5
    KB3MMX

    KB3MMX Road Train Member

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    This first !!!
     
    KB3MMX, Jun 13, 2019
    KB3MMX, Jun 13, 2019
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  8. Jun 14, 2019 #6
    2013Maxx

    2013Maxx Light Load Member

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    It’s wearing in a river like pattern. It seems to be shaking slightly left to right very fast from 45-50mph.. I'm going to try and get it jacked up tomorrow and check it..
     
    2013Maxx, Jun 14, 2019
    2013Maxx, Jun 14, 2019
    #6
  9. Jun 14, 2019 #7
    little cat 500

    little cat 500 Road Train Member

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    junk tires
     
    little cat 500, Jun 14, 2019
    little cat 500, Jun 14, 2019
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  10. Jun 14, 2019 #8
    RustyBolt

    RustyBolt Road Train Member

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    Ya know, I didn't even look to see if I could make out a brand name in his pics. But it's in plain view. And you may be on to something. Always heard Roadmasters were junk (hit or miss, at best) tires. I know it was rumered that Cooper had those made in China. Not sure if that is the case or not.
     
    RustyBolt, Jun 14, 2019
    RustyBolt, Jun 14, 2019
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  11. Jun 14, 2019 #9
    Rideandrepair

    Rideandrepair Road Train Member

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    How many miles on tires? If more than 120 k, It may just be time for new ones.
     
    Rideandrepair, Jun 14, 2019
    Rideandrepair, Jun 14, 2019
    #9
  12. Jun 14, 2019 #10
    InTooDeep

    InTooDeep Donner party survivor

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    Mine did that when stoopid wrench didn't tighten the wheel bearings enough
     
    InTooDeep, Jun 14, 2019
    InTooDeep, Jun 14, 2019
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