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Do these alignment specs look OK?

Discussion in 'Suspension' started by Taco-NB, Apr 11, 2011.

  1. Apr 11, 2011 at 9:41 AM
    #1
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    I installed 5100's set at 2.5 and a 5th AAL last week. Today I had the alignment done and it rides pretty nice!!

    I know that they can have a hard time with the Caster without changing the UCA's. Just a couple questions.

    1) Do the numbers for the front look OK?
    2) What about the number for the back? Should I get a rear alignment done as well?

    Cheers.

    photo.jpg
     
  2. Apr 11, 2011 at 9:50 AM
    #2
    Pugga

    Pugga Pasti-Dip Free Since 1983

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    There's not much you can do with a rear alignment, it's a solid axle. Waste of money in my opinion.
    I'll try to find another thread about caster but I think you want more than that or it'll wander on you. That being said, how does it handle? Caster won't affect tire wear so if it handles fine, don't worry about it.
     
  3. Apr 11, 2011 at 9:52 AM
    #3
    steve o 77

    steve o 77 braaap

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    your caster is definitely low, but if you don't mind a bit of wandering on the freeway you should be fine.
     
  4. Apr 11, 2011 at 9:53 AM
    #4
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    Before the alignment, it was wondering and felt kind of loose ... especially when I hit a bump in the road. Also, the steering wheel was shaking at 70mph.

    After the alignment, it tracks down the road great, no loose feeling and no pulling when I hit bumps. There is a slight shake at 70mph that goes away after I cruise at that speed for a while.
     
  5. Apr 11, 2011 at 9:58 AM
    #5
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Seems like alot of Toe. You should have about .05*.....Not .5*. Your Caster is really low. Nothing you can do without different UCA's though. It should be over 2.0*. For the rear, Jack it up, loosen the U bolts, and pull the passenger side twards the rear more. About 1/4" or so should do it.
     
  6. Apr 11, 2011 at 10:07 AM
    #6
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    OK thanks I will give that a try with the rear. I'm driving 3 hours to Edmundston this weekend. If it feels like it's wondering, I might have to invest in new UCA's?
     
  7. Apr 11, 2011 at 10:10 AM
    #7
    Pugga

    Pugga Pasti-Dip Free Since 1983

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    Or drop the front some so there's more room for adjustment.
     
  8. Apr 18, 2011 at 4:17 PM
    #8
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    Got back from my short highway trip yesterday. The truck rode pretty nice and didn't seem to pull or wander too much. However, it was freekin' windy and raining but I didn't notice any issues.

    I did notice that I am getting some shaking in the steering wheel. It isn't there all the time though. When I go around 70mph up to 80mph, the steering wheel shakes some times and other times it's perfectly still.

    I just had the tires balanced about a week ago but they might have done a piss-poor job.

    If the balance is out, will it shake only some of the time like mine does? Or, if the balance is out, will it always shake all the time?

    Thanks.
     
  9. Apr 18, 2011 at 7:09 PM
    #9
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    Bump.

    Thanks.
     
  10. Apr 18, 2011 at 7:25 PM
    #10
    chris4x4

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    Your Caster sucks. That couldbe causing the shake at 70+ mph. Also, Your Toe needs to come down a little.
     
  11. Apr 18, 2011 at 7:41 PM
    #11
    Taco-NB

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    OK thanks Chris. Just did a web search about caster and the majority of the pages agree that really bad caster could cause the shaking. I'll try rotating the tires tomorrow to see if it's maybe a bad balance.

    If not, can someone recommend good UCA's for the Canadian climate?

    Cheers.
     
  12. Apr 18, 2011 at 7:42 PM
    #12
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Light Racing
     
  13. Apr 19, 2011 at 7:23 PM
    #13
    The Munster

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    What shop did you go to for alignment? Usually measurements are in degrees not mm :? Caster will only cause a pull. Camber is the one to watch out for. After lifts are installed you usually have to positive caster. But really your angles aren't bad
     
  14. Apr 19, 2011 at 7:24 PM
    #14
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

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    Really? His Camber needs to come in about .2* more, his toe should be .05* instead of .5*, and his caster is screwed.
     
  15. Apr 19, 2011 at 8:26 PM
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    The Munster

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    Yes they should have fixed his caster. But everything else is almost perfect. 99% of the time your vehicle won't be perfect. They get as close as they can. They did a pretty damn good job on toe and camber.
     
  16. Apr 19, 2011 at 8:30 PM
    #16
    The Munster

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    And according to those specs his toe is right where it needs to be..... Taco Nb go back to the shop and have them print off a sheet with your trucks specs on it. Then compare them to the print out they gave you
     
  17. Apr 20, 2011 at 1:55 PM
    #17
    Taco-NB

    Taco-NB [OP] MMMMM Taco's

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    That is the sheet that they printed off for me. It has the before and after specs.

    Cheers.
     
  18. Apr 20, 2011 at 2:03 PM
    #18
    joerussell610

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    Great specs! All well within specs!!! Great alignment tech.
     
  19. Apr 20, 2011 at 3:45 PM
    #19
    chris4x4

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    The Caster is no where near "Spec."
     
  20. Apr 20, 2011 at 3:47 PM
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    OZ-T

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