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Is Positive Scrub Radius OK?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by IcePlant, Mar 1, 2018.

  1. Mar 1, 2018 at 3:51 PM
    #1
    IcePlant

    IcePlant [OP] Well-Known Member

    Joined:
    Jan 30, 2018
    Member:
    #242949
    Messages:
    124
    Gender:
    Male
    First Name:
    Vince
    Vehicle:
    2017 BLACK TACOMA TRD SPORT DCLB 4X4
    -King 3" Lift -Leitner ACS Forged Bed Rack -TRD Pro Stainless Steel Cat Back Exhaust -TRex/ZRoadz Light Bar Grille
    I want 18x9 (-12mm offset) Fuel Assault Wheels on 285/65/18 tires
    Screenshot_20180226-102826.jpg
    But when I enter dimensions into a suspension/wheel calculator, it says this will give me a positive scrub radius which is not ideal. Positive scrub radius effects steering, handling and has negative effects on related parts.

    scrubRadius.png

    (The wheels are offered in +1mm and +20mm offset but then wont even fit...too much backspace)

    I chatted with a TW member and he mentioned to get a custom alignment.
    "+2.8-+3.0 degrees caster
    +0.50 degrees camber; if you want it set-up for road crown, +0.75 degrees on the driver side and +0.50 on the passenger side
    +0.15 degrees toe
    The correct way to do 'stance' and keep the steering geometry is long travel suspension."

    I also chatted with a Fabricator and was told "A wheel with those dimensions will have a positive scrub radius, changing out the suspension does not alter that."

    Is there any way to counter this and get zero scrub radius with the Fuel Assaults?

    Do I have any other options other than deal with the positive scrub radius or should I just give up on these wheels?


    Any help is much appreciated!
     

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