leaf spring shackle bushings

Discussion in 'Peterbilt Forum' started by rhitrucking, Jun 24, 2020.

  1. rhitrucking

    rhitrucking Light Load Member

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    Feb 7, 2017
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    I dont know if they are stock at this point. I cant find any numbers...nevermind, just found a stamping, let me google and see what i find
     
    Last edited: Jun 24, 2020
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  3. bad-luck

    bad-luck Road Train Member

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    My springs were worn out 3 years ago, I put in heavy duty ones which were 13,200. Broke the driver side spring this year, went back to 12k. When with triangle springs
     
  4. bad-luck

    bad-luck Road Train Member

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    Ok, spring shop may be able to tell you what you have if you have time and swing by one. It would be costly, but they make an after market front spring air bag kit
     
  5. rhitrucking

    rhitrucking Light Load Member

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    Well, they are 12k springs...so it rules that out.
     
  6. bad-luck

    bad-luck Road Train Member

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    Only other thing I can think of is the cab bushings as I mentioned. If your feeling it in the front end, I am out of ideas
     
  7. rhitrucking

    rhitrucking Light Load Member

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    All good, I appreciate the help! I have a spring shop pretty close to me. Gonna have them take a look. Have a great evening!
     
  8. bad-luck

    bad-luck Road Train Member

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    You too! And your very welcome, sorry I couldn't be more help
     
  9. w9l

    w9l Medium Load Member

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    One other thing you might check.... Make darn sure that the shocks are for sure the right ones for the application. I have seen shock mounts replaced that for whatever reason were not positioned the same as oe. Put upper and lower mounting points closer together and shock will bottom out in alot of cases
    Also seen mistakes made in packaging and by parts personnel. Just because they bolt up does not mean they have adequate travel. Talk about rough.... Seen an upper shock mount broke off as a result.
     
  10. AModelCat

    AModelCat Road Train Member

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    Where are you jacking the truck up from? If you're jacking it up from the axle beam then you're not really changing the amount of weight the spring is bearing. Thus the shackle angle shouldn't change much, if at all.

    Jacking it up from the frame you'd be de-loading the spring, giving it more arc. That should make the shackle sit more vertical. If you're lifting from the frame I would think you should see movement in the bushings as the pins go from supporting the truck to holding the axle beam.
     
    pushbroom Thanks this.
  11. JerzyG

    JerzyG Light Load Member

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    Not to sound stupid but maybe there is too much air in the front tires? Just taking a wild guess here with the air thing. Is this an issue since you bought the truck?
     
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