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Alignment Numbers

Discussion in '2nd Gen. Builds (2005-2015)' started by jeverich, Dec 2, 2011.

  1. Dec 2, 2011 at 11:08 AM
    #1
    jeverich

    #1
    jeverich [OP] Well-Known Member

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    I need help interpreting these alignment numbers. I know, it's been asked a million times before...

    Light Racing UCAs are still $379.00 from Fat Bob's.

    This is post OME Lift, with 885s up front and Nitrochargers with Top Plate spacers.

    scan0001_b6d1583fe8bdf410f7796afd118b2fcacecef886.jpg
     
    jeverich, Dec 2, 2011
    #1
  2. Dec 2, 2011 at 11:22 AM
    #2
    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Your Toe is good (Not dependant on the UCA's anyway), but your Caster should be .4*, and your Caster should be 2.1* or more. SO......Your alignment looks like shit.....loosely translated for you.
     
    chris4x4, Dec 2, 2011
    #2
  3. Dec 2, 2011 at 11:25 AM
    #3
    OZ-T

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    OZ-T You are going backwards

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    Got that for you Big Guy :thumbsup:
     
    OZ-T, Dec 2, 2011
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  4. Dec 2, 2011 at 4:37 PM
    #4
    jeverich

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    jeverich [OP] Well-Known Member

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    Highly scientific answer, I like it!

    New UCAs on order.
     
    jeverich, Dec 2, 2011
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  5. Dec 2, 2011 at 5:29 PM
    #5
    SCFirefighter

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    SCFirefighter on idiot patrol ;)

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    I wish I knew what I was looking at :anonymous:
     
    SCFirefighter, Dec 2, 2011
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  6. Dec 2, 2011 at 5:41 PM
    #6
    scocar

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    scocar hypotenoper

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    Hang on a sec before you get the LR UCAS. 885s are only about a 1.75 lift?

    I had about the same issue with my 881s (1st gen 1.75 lift), and the caster was way off. Too twitchy. I went in again and told them specifically to max out the caster, and they did! They got 2.4 out of it with the stock UCAs just because I asked them too. I think some lazy techs will just do a toe-and-go unless you specify that you actually want them to do their job, unfortunately. Unless there is anything dramatically different on 2nd gens, it's worth a shot before you drop a few C-notes.
     
    scocar, Dec 2, 2011
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  7. Dec 2, 2011 at 5:41 PM
    #7
    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    885's give between 2.5 and 3" lift on most second gens
     
    chris4x4, Dec 2, 2011
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  8. Dec 2, 2011 at 5:42 PM
    #8
    scocar

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    scocar hypotenoper

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    Ah. So this isn't right?
     
    scocar, Dec 2, 2011
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  9. Dec 2, 2011 at 5:43 PM
    #9
    chris4x4

    #9
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Nope.
     
    chris4x4, Dec 2, 2011
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  10. Dec 2, 2011 at 5:45 PM
    #10
    scocar

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    scocar hypotenoper

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    Nice.

    So is there a magic cutoff height where you can no longer can get within spec and need to go with aftermarket UCAs?
     
    scocar, Dec 2, 2011
    #10
  11. Dec 2, 2011 at 5:51 PM
    #11
    chris4x4

    #11
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Seems to vary a bit from truck to truck. Some have issues after 2" lift, while some are fine at 2.5". 3" and you need new UCA's to get the alignment right. Also, seems some techs like to tell people "We got it 'In Spec'". This might be true, but if you look at the print out, you would see that the Camber, and Caster are at max. acceptable levels. But with a lift, generally comes larger tires, and a wider foot print. Different numbers need to be used. The alignment needs to be a little more "accurate" so as to keep the tires from wearing poorly. For example, the OP's printout shows the tires are angled in like this \--/ when viewd from the front. Alignemtn shops will add more camber in order to get a little more Caster. You have to sacrifice one for the other, and even then, its still a poor alignment.
     
    chris4x4, Dec 2, 2011
    #11
  12. Dec 2, 2011 at 6:06 PM
    #12
    jeverich

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    jeverich [OP] Well-Known Member

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    Also, it comes down to the individual Tech's willingness to adjust the alignment as well.

    Keep in mind the tech also knifed the sidewall of my tire on the alignment rack too. That was real fun. I mean, it's not like they are new or anything.

    In an attempt at self-redemption...all the research that I did prior/post the lift is pointing to new UCAs. It's ludicrous to think that you could preform such a radical change in the factory-engineered suspension system, and still use factory UCAs. Again, there is a big difference between good enough and done right.

    I learned that a while ago...That's right up there with, "Double-check, then triple-check that everything is tight"...Especially with 100GPM, 3,000 PSI Marine hydraulic systems. If a fitting isn't tight, you'll know. In about 1 microsecond.

    LR UCAs on their way.
     
    jeverich, Dec 2, 2011
    #12
  13. Dec 2, 2011 at 6:06 PM
    #13
    scocar

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    scocar hypotenoper

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    Yeah whenever I look at the curves in the FSM, it makes my head spin. It slowly dawned on me that 2.4 caster with a lift is more like 1.4 in reality, at least in terms of handling, for example.
     
    scocar, Dec 2, 2011
    #13
  14. Dec 2, 2011 at 6:07 PM
    #14
    chris4x4

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    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Yeah. I like to get close to 2.8* or so when lifted 3". I didnt mess with my first gen too much, and I cant remember the numbers that gave the best ride.
     
    chris4x4, Dec 2, 2011
    #14
  15. Dec 2, 2011 at 6:12 PM
    #15
    chris4x4

    #15
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    True! However, Toyota doesnt engineer much Caster into their suspensions. Where as a 3" lift virtually wipes out any Caster you can have (keeping the Camber fairly inline), many other vehicles have much more built in. For example, My Dodge. I lifted it 2" and hit the OEM specs plus some added Caster with ease. Cars can have 11* or so of Caster. As this makes the vehicle more stable, it also increases the leverage working against the steering rack, and if off roading, can lead to broken parts, if the tire is jammed between a rock, and a hard place......so to speak. Decreasing the Caster gives more protection against this, but reduces the vehicle stability in a straight line. Take the limited Caster on a Tacoma, then lift it, and reduce the Caster down to 0*, and then take a drive on a rutted road. The truck will want to go everywhere but in a straight line.
     
    chris4x4, Dec 2, 2011
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