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Largest tire you can run stock for all generations

Discussion in 'Wheels & Tires' started by T-Rex266, Jan 9, 2017.

  1. Jan 9, 2025 at 3:09 PM
    #421
    Cruiserpilot

    Cruiserpilot New Member

    Joined:
    Dec 1, 2020
    Member:
    #55579
    Messages:
    1,266
    First Name:
    Jon
    Ladysmith
    Vehicle:
    2010 5.7 RCSB 4WD
    Update: I've been running the new Toyo tires on the wheels for over a month. There is only rub on factory skid plate up
    front while on full lock. It makes a funny card in bike spokes noise but I don't care. I will trim the skid plate with a cutoff
    wheel shortly.

    What I can say unequivocally is going from Cooper factory tire to the HEAVY Toyo RT Trail tires is my fuel economy took
    a very serious hit!! The unsprung mass of these heavy tires is very present as the automatic transmission tries to
    compensate. I'm certain if I had a 6 speed manual it would be different.
    I am making a 500 mile trip this weekend but on clean highway, no mountain passes in 2HI all the time to get a
    new baseline for these tires. I did the trip last year with the stockers on the truck so this will be a direct comparison test.
     
  2. Feb 26, 2025 at 8:36 PM
    #422
    Lucress

    Lucress New Member

    Joined:
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    #130693
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    Male
    Vehicle:
    19' TRD Pro
    Well I guess I’m gonna be that guy. I went to “will it fit” and can anyone explain the numbers and what it all means please? Im good at math, he’ll, I LIKE math, but wheel math hurts my brain. I have a 19 trd pro, currently on the stock 18” wheels so I’m assuming +60 offset based off what I’ve read? I’d like to try and put 295/70/18 Wildpeak AT4/W’s on the stock wheel. Most other forums I’ve read mention people remove mudflaps etc but I just don’t understand what the websites telling me. I’ve tried watching videos on offset and backspacing etc and nada.

    Can someone explain to me like I’m a five year old please?

    IMG_2517.png IMG_2518.png IMG_2519.png
     
  3. Feb 27, 2025 at 8:45 AM
    #423
    APalmTree

    APalmTree Sometimes helpful

    Joined:
    Feb 23, 2020
    Member:
    #43054
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    809
    Gender:
    Male
    First Name:
    Brandon
    SW Washington
    Vehicle:
    2012 TRD Offroad White Crewmax 5.7L
    A few... Definitely more than 2
    Since you are not changing wheels in this example, this website is not telling you that much. Offset and backspacing are a little more complicated, but until you start looking at different wheels, it does not really matter yet. The most important metric on this page is the 'Arch gap loss', if you have a minute to just sit back and look at your wheels I would encourage you to turn the steering wheel back and forth in small increments and identify when the tire is the closest to various components, then with the tire in that position, imagine that it is about 1" bigger radius and about 1/4" wider as well. It is very possible that you can slap the bigger tires on your truck and you won't have to do anything, every truck is just slightly different.


    More specific info marked up: (FYI, I dismissed it, but 'Inset' below is the same as backspacing and 'Poke' + ' Inset' = wheel width)
    upload_2025-2-27_8-25-21.png
     
    Lucress[QUOTED] likes this.
  4. Feb 27, 2025 at 8:48 AM
    #424
    Lucress

    Lucress New Member

    Joined:
    Feb 20, 2025
    Member:
    #130693
    Messages:
    12
    Gender:
    Male
    Vehicle:
    19' TRD Pro

    Thank you very much! I'll take you up on your recommendation to go look at the wheel wells and identify any areas of potential "interest" so to speak with moving to a larger tire.
     
    APalmTree[QUOTED] likes this.
  5. Apr 17, 2025 at 11:54 PM
    #425
    voodoobloo

    voodoobloo New Member

    Joined:
    Mar 25, 2025
    Member:
    #132483
    Messages:
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    So what brand and size did you end up going with?
     
  6. Apr 18, 2025 at 4:24 AM
    #426
    Lucress

    Lucress New Member

    Joined:
    Feb 20, 2025
    Member:
    #130693
    Messages:
    12
    Gender:
    Male
    Vehicle:
    19' TRD Pro
    I haven’t actually swapped em out yet. The plan was to do so, but figured I’d run the life out of the GeoDrives I’ve currently got as now that the snowy season is over, road conditions aren’t too bad.
     

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