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8" Width Wheel Offset

Discussion in 'Wheels & Tires' started by harrisdoggy, Oct 11, 2016.

  1. Oct 11, 2016 at 11:25 AM
    #1
    harrisdoggy

    harrisdoggy [OP] New Member

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    Just did a level to the front end of my 2016 with Bilstein 5100's. Now the front tire rubs on the skid plate when I turn all the way. Anyone know if an 8" width wheel with a +35 mm offset will look about the same as an 8.5" width wheel with a +25 mm offset? Need something to bump the stock wheels out a little so the tires don't rub. The stock wheels are a +60 mm offset if I remember right, so 8" width with +35 mm should push the wheels out about an inch, right?
     
  2. Oct 11, 2016 at 2:30 PM
    #2
    jberry813

    jberry813 The Mad Scientist Staff Member

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    8" with +35mm offset is 5.878" backspacing
    8.5" with + 25 offset is 5.734" backspacing

    The 8" with 35 offset will actually cause you to rub skid plate slightly more as it will bring the tire in 0.144" closer to the frame.

    Just zip 1/2" off each side of the skid plate with a cuttoff wheel. That's what most of us have done.
     
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  3. Oct 11, 2016 at 2:36 PM
    #3
    harrisdoggy

    harrisdoggy [OP] New Member

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    Thanks @jberry813 - appreciate it. May just cut the skid plate. How much wider will the 8" wheel with a +35 mm offset be than the stock 8" wheel with a +60 mm offset (I think)?
     
  4. Oct 11, 2016 at 2:39 PM
    #4
    jberry813

    jberry813 The Mad Scientist Staff Member

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  5. Oct 11, 2016 at 2:45 PM
    #5
    harrisdoggy

    harrisdoggy [OP] New Member

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    Thanks. I was wondering if it was as simple as just converting the difference between 60 mm and 35 mm. Again, appreciate the help!
     
  6. Oct 11, 2016 at 6:41 PM
    #6
    jberry813

    jberry813 The Mad Scientist Staff Member

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    Math made easy if you want to do more conversions:

    http://www.weldwheels.com/ccwheel/faqs/converter/
     
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  7. Jan 3, 2017 at 4:05 PM
    #7
    oul

    oul Old New Member

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    I'm new here and trying to figure this out for myself also. What size tire are you running?
     
  8. Jan 4, 2017 at 7:46 AM
    #8
    harrisdoggy

    harrisdoggy [OP] New Member

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  9. Jan 4, 2017 at 8:10 AM
    #9
    oul

    oul Old New Member

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    Thanks Josh. Just so I understand, you had this tire on a stock wheel? I'm wanting a bigger tire but want to keep the original wheel or the same geometry as stock.
     
  10. Jan 4, 2017 at 8:34 AM
    #10
    oul

    oul Old New Member

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    I read your other post and answered my question. I really want BFG KO2's and the don't come in 285/70R18 so I'm trying to decide on 275/70R/18 or 305/64R/18. The 305's are asking for at least a 8.5" wheel. I wonder if anyone has tried that size on a stock wheel?
     
  11. Jan 4, 2017 at 8:41 AM
    #11
    joonbug

    joonbug I love peanut butter

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    305 will likely rub the UCA without wheel spacers
     
  12. Jan 4, 2017 at 8:47 AM
    #12
    harrisdoggy

    harrisdoggy [OP] New Member

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    I'm not very familiar with all this stuff, but I was debating the same thing. The 285/70R18 is a pretty perfect size given I just did the level, but selection is quite limited. I was going to go with 275/70R18, I think that is a great size, but found something slightly larger. After having owned these Nitto's for a couple months now, I'd go with them in just about any size. I was going to go with the BFG KO2's, they're a great tire, but I'm really happy with the Nitto's. Much happier than I thought I would be. Anywho, no clue on the 305's you're talking about, but the 275/70's would look great in my opinion. Good luck!
     
  13. Jan 4, 2017 at 8:53 AM
    #13
    oul

    oul Old New Member

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    Thanks for the reply's. I'm planning on the Bilstein 5100's at the mid setting then make up my mind on the tires. Your truck looks awesome "harrisdoggy".
     
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  14. Jan 4, 2017 at 12:12 PM
    #14
    harrisdoggy

    harrisdoggy [OP] New Member

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    Thanks. I had 275/70R18 Michelin's on the stock wheel before switching to aftermarket wheels. My tires rubbed the skid plate at full lock with the Bilstein's at mid setting on the stock wheels. An easy fix is to cut/trim the skid plate a little if you really want to stay with stock wheels and not do spacers. That would have been the more economical solution for me for sure.....:)
    If I could do it over again I'd really consider going to the top setting on the Bilstein's. I think at 275/70 you'd be fine at the middle setting, but my 285/70's rub the bumper just a little bit at full lock, I think at the top setting it would clear it however. I'm not sure how the truck would look while towing/hauling at the top setting however.
     
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