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Stock Width Replacment LCA

Discussion in '1st Gen. Tacomas (1995-2004)' started by Blackdawg, Sep 23, 2015.

Page 11 of 11
  1. Apr 15, 2016 at 1:50 PM
    #201
    Digiratus

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    More rake will make it easier, not harder, to get more positive caster.
     
    Digiratus, Apr 15, 2016
    #201
    jberry813 likes this.
  2. Apr 15, 2016 at 2:00 PM
    #202
    Deathbysnusnu

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    Deathbysnusnu Work is just a daily detour to happy hour.

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    Rake lifts the rear up, tilting the front upper ball joints forward, reducing caster.
     
    Deathbysnusnu, Apr 15, 2016
    #202
  3. Apr 15, 2016 at 2:12 PM
    #203
    Willbeck

    #203
    Willbeck Well-Known Member

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    I mean, technically this is true, but you'd have to have to serious take to throw off your alignment
     
    Willbeck, Apr 15, 2016
    #203
  4. Apr 15, 2016 at 2:55 PM
    #204
    jberry813

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    jberry813 Professional Fluffer Moderator

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    ...too much shit to list.
    I never measured my stock length arms, but I have the most caster at full bump and the least caster at full droop. Raising the rear would further load the front (more bump)...which in turn would increase caster.

    You can see here at full droop how the UCA uniball pushes forward and has the least amount of caster.



    Doesn't take as much as you think. I realign my front end any time I adjust the ride height front or rear.
     
    jberry813, Apr 15, 2016
    #204
  5. Apr 15, 2016 at 3:06 PM
    #205
    Digiratus

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    I've been told on more than one occasion by alignment techs that leveling the truck (removing the rake) makes it harder to get higher caster numbers. :notsure:
     
    Digiratus, Apr 15, 2016
    #205
  6. Apr 15, 2016 at 4:54 PM
    #206
    Dirty Pool

    #206
    Dirty Pool FLIES ON THE FRIES, KETCHUPS WATERED DOWN

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    From a straight geometric perspective, rake/caster is a one to one relationship. 1 deg of increased rake equals 1 less deg of caster. "Loading" the front from raising the rear negates this bit. To accurately describe "a bit" other factors such as "amount", spring rate, spring load at ride height and actual vehicle weight distribution need to be considered.
    Geometrically on an extra cab, just a hair under 2" rake (higher rear) equals 1 deg less caster.

    For Mr Bravo's case something is wrong, he should easily get in excess of "factory" caster spec unless his rear (no weight) is a foot higher than the front.
     
    Dirty Pool, Apr 15, 2016
    #206
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  7. Apr 15, 2016 at 5:22 PM
    #207
    alphabravo

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    alphabravo Well-Known Member

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    Ok. Thanks guys. I'll check back when I have the load on the back and see if that helps.
     
    alphabravo, Apr 15, 2016
    #207
  8. Oct 27, 2016 at 2:56 PM
    #208
    quetzal

    #208
    quetzal Well-Known Member

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    Bump - did it help any? Did you ever get the + caster you were after? I'm having the same issue and now I'm wondering if I have a rake. I am running AP Expo leafs w/ King ext. and AP ucas.
     
    quetzal, Oct 27, 2016
    #208
  9. Nov 4, 2016 at 10:44 AM
    #209
    alphabravo

    #209
    alphabravo Well-Known Member

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    Hiya guys.

    The shop set an alignment to reduce wear and the tires have been wearing well. Granted they are 10ply. My old Revos ran for like 8 years with almost no wear since the truck is so light.

    I'm still not sure I believe the caster measurements the alignment shop showed. I think with the rear end being high and the fact that the computer wouldn't allow the entry of non-stock tire sizes might have something to do with the reading. In other words I still don't know if I have the caster I was hoping for.

    I will get the bed on in December.
     
    alphabravo, Nov 4, 2016
    #209
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