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1st Gen Caster Angle Help (LR UCA)

Discussion in 'Suspension' started by StAndrew, Nov 14, 2012.

  1. Nov 14, 2012 at 10:58 AM
    #1
    StAndrew

    StAndrew [OP] Wait for it...

    Joined:
    Feb 8, 2010
    Member:
    #30950
    Messages:
    5,292
    Gender:
    Male
    First Name:
    Chris
    Hampton Roads, Va
    Vehicle:
    SR5 4x4TRD
    Deck Plate Mod; Grey Wire Mod; 1.5" AAL; 1.75" Lift Shackles; Bilstein 5100's; Eiback Coils; LR UCA; Front Diff Drop; Tundra Brake Upgrade; Wheels Offroad Brake Lines; Rear Diff Breather Mod
    Just installed 285/75 r16 tires and notice a bit of wandering. Its not excessive but enough that I need it fixed.

    First: Current Caster Angle is ~ 2.5 (+) on each wheel. How much is too much for these trucks?

    Second: Tech said the Caster alignment bolts need to be re-welded. Anyone have more info on this???

    Third: Tires slightly rub on the frame at full lock (1.25" wheel spacers). Is it correct that increasing caster on the upper control arm will shift the tire further back in the wheel well and increasing caster on lower does opposite?

    Thanks.
     
  2. Nov 15, 2012 at 7:38 AM
    #2
    StAndrew

    StAndrew [OP] Wait for it...

    Joined:
    Feb 8, 2010
    Member:
    #30950
    Messages:
    5,292
    Gender:
    Male
    First Name:
    Chris
    Hampton Roads, Va
    Vehicle:
    SR5 4x4TRD
    Deck Plate Mod; Grey Wire Mod; 1.5" AAL; 1.75" Lift Shackles; Bilstein 5100's; Eiback Coils; LR UCA; Front Diff Drop; Tundra Brake Upgrade; Wheels Offroad Brake Lines; Rear Diff Breather Mod
    How about an easier question: Whats the difference between + and - Caster angle?
     
  3. Nov 15, 2012 at 2:34 PM
    #3
    StAndrew

    StAndrew [OP] Wait for it...

    Joined:
    Feb 8, 2010
    Member:
    #30950
    Messages:
    5,292
    Gender:
    Male
    First Name:
    Chris
    Hampton Roads, Va
    Vehicle:
    SR5 4x4TRD
    Deck Plate Mod; Grey Wire Mod; 1.5" AAL; 1.75" Lift Shackles; Bilstein 5100's; Eiback Coils; LR UCA; Front Diff Drop; Tundra Brake Upgrade; Wheels Offroad Brake Lines; Rear Diff Breather Mod
    Is this the wrong section? :notsure:
     
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