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Truck wanders on freeway after lift and alignment

Discussion in 'Technical Chat' started by davidpick, Jan 15, 2013.

  1. davidpick

    davidpick [OP] Well-Known Member

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    Hi all,
    Just installed my OME lift and new wheels/tires and am dealing with pretty vague steering, most noticeably at freeway speeds. The front end wants to wander quite a bit and I have to make numerous steering corrections to keep it in the lane or going through a corner.

    About two weeks ago, I had Les Schwab do an alignment and asked for 0 Toe, 0 Camber and 2.5+ Caster. The printout below is what I got back. Shouldn't I be able to get those specs with Camburg uniball UCAs? Is the wandering due to poor alignment or is it just the bigger (and wider) tires grabbing the imperfections in the road a bit more?

    Background on the truck:
    OME lift (881s + 10mm lift enhancers in the front, OME Dakar leafs in the rear)
    Camburg UCAs
    New Moog LBJ
    Steering column tack weld mod
    285/75r16 Goodyear Duratracs
    16x8 Konig Countersteer wheels

    Alignment specs
    [​IMG]

    In case you can't read it, the post-alignment specs are:

    LEFT RIGHT
    Camber 0.6 0.1
    Caster 1.6 1.9
    Toe 0.03 -0.01
     
  2. chris4x4

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

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    FlimFlubberJAM
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    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Looks like a crappy job. Toe shouldn't be in the negative at all. Camber should be even and around .4*. I'd make them do it again.
     
  3. maxamillion2345

    maxamillion2345 Go home if you don't like guns liquor and whores.

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    I always try to talk to the tech and not the counter guys. Tell him what you're after and he can tell you what he runs into etc... etc...

    Helps to have a good guy though.
     
  4. davidpick

    davidpick [OP] Well-Known Member

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    thanks, guys! would an alignment to those specs be the cause of the wandering? there's supposedly a really good alignment shop about 20 minutes north of me and i'm contemplating taking it there.

    the tech at les schwab seemed to think there was no more adjustment and that was the best he could do, but from what i've read, with the new UCAs, it shouldn't be a problem to get it to the 0 Toe, 0 Camber, 2.5+ Caster specs, correct?
     
  5. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Regardless of alignment, From my past experiences larger/wider tires have a tendency to fallow the road more than the stock tires. Ive noticed this pretty much anytime Ive gone larger/wider tires regardless of how good the alignment is. if its a really good smooth road surface it'll track straight and true. But if the road is crowned, bumpy, off camber, or however you want to describe it, the larger wider tires have always wanted to wander/fallow the road...but that's just from my past experiences, take it for what its worth its my .02:cheers:
     
  6. davidpick

    davidpick [OP] Well-Known Member

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    thanks, boosted! yeah, i expected the new wheels/tires to change the handling somewhat, but i'm getting a lot of wandering... and it's making me wonder if the alignment is to blame for the majority of it.
     
  7. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Also seems to get worse the wider you go, At least thats what I got on my last truck. Went from a 35x12.50 to a 37x12.50 seemd about the same, than went to a 37x13.50 got a little worse, than went to a 39x14.50 and it really liked to wander following the road contour...
     
  8. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Im from eastern Washington, If everett is the same as where I was there were a lot of 2 lane country roads, that always seemed to be on diffrent camber, tilt & angles. My trucks up there were always wandering...
     
  9. davidpick

    davidpick [OP] Well-Known Member

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    yeah the roads here aren't exactly perfect either...

    another thing: i have noticed that the whole front of the truck squirms left/right when under moderate-to-hard braking.
     
  10. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    First things first, check your air pressure & lug nut tq! But ya with wider/larger tires they'll pull under breaking if the road surface isn't consistent. It amplifies the tires tendency to fallow the road. Again I'm only going off my past experience. Hope it helps & good luck! Stiffer sway bars may help a little, I just removed mine for off road purposes. But that's my .02
     
  11. chris4x4

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

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    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    His tires arent large enough to affect the steering to that degree. And looking at the alignment numbers, it looks as if his alignment was half assed.
     
  12. davidjmay

    davidjmay Well-Known Member

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    39 x 14.50? :eek:
     
  13. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Could be a half ass alignment, but I'm running a 275 on my Tacoma & noticed it wandering/following the road more than with stock tires. I'm not saying it's 100% the tires. But in my opinion the wider tires will make a difference. Shabby alignment may be amplifying it.
     
  14. OZ-T

    OZ-T All of those moments....will be lost.....in time

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    275/?/?
     
  15. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    yup! Well technically 38.50x14.5x17 they were equal to a 39...:headbang:
     
  16. chris4x4

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

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    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    it IS the alignment. Get the Camber close to .4* on each side, get the Toe to .05* both sides, and get the Caster over 2.4* and it will drive nice and straight. I have 285 width tires (wider than a 285/75 at the tread actually), caster is at 2.8*, and the truck drives nice and straight with no wandering. And the roads in my area are enought to jerk an un alignhed vehicle into another lane.
     
  17. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Correction, 285/75/16. Sorry about that...
     
  18. Boosted TRD

    Boosted TRD your what hurts!?!?!?

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    Good to know, thanks. I'll have to pull my alignment sheet & see what mine is at. Prob a bit off now after wheeling last weekend lol
     
  19. chris4x4

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

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    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Post up the numbers when you get it aligned. Get that caster up over 2.4*, and you shouldnt have any wandering.
     
  20. davidjmay

    davidjmay Well-Known Member

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    Holy shit. Do you have any pictures? Haha
     
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