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I’m wanting to throw some bigger tires on my 2008 DC 5.7 SR5 4x4, but I’m running stock wheels. I’m 95% certain they’re way too narrow for these upsized tires. I’m looking for a NON-FLASHY set of wheels. The closer the look to D-window/rock crawler/military, the better. Absolutely no rock rings, real or fake. Ideally, I’d like to get 16.5” HMMWV wheels to fit and use the Wrangler MTR that usually go along with them. But I understand the wheels are too small for the brakes. Anyone know anything? Lol


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I’m running 35x12.5 on my 2008 DC TRD 4x4 with my stock rims... you will need to get a set of 1.25” spacers to clear the UCA...I have a slight lift but nothing crazy....


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I’m running 35x12.5 on my 2008 DC TRD 4x4 with my stock rims... you will need to get a set of 1.25” spacers to clear the UCA...I have a slight lift but nothing crazy....


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So, 17/18x8? Do you have any pics? I’m gonna have a 3/1 leveling kit and I’ll get whatever spacers I need.


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Yep. As soon as I get to Salt Lake City, new tires and a lift are getting into my life. Thanks!!!


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Yep. As soon as I get to Salt Lake City, new tires and a lift are getting into my life. Thanks!!!


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Haha no problem! You’ll have to do some small trimming (front fender liners and mud flaps, and bend both rear corners of the skid plate out of the way)


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So, 17/18x8?
The recommended width for 35x12.5r18 is typically 8.5-11" width, so you will be outside manufacturer specs. 285/75r18s or 295/70r18s will work though.

If you are wanting ~35" tires for your Tundra on 18" wheels, these are your options. All have been normalized to 9" width wheels using the 40% rule (1 inch of wheel width changes the tire width ~0.4"), and are "averages" based on actual specs. The 305/70s tend to be the largest diameter and are also quite wide, so hardest to fit. 325/65s are the same dia as 35x12.5s typically but are wider.

295/70r18 (~34.3x12.0)
285/75r18 (~34.8x11.7)
305/70r18 (~35.1x12.6)
35x12.5r18(~34.6x12.1)
325/65r18 (~34.6x12.8)

I'm happy with the MB TKOs I got from Discount Tire Direct at the Labor Day sale. I think they were $117 with the rebate (free shipping, no tax). If history repeats they will have a $100 off $450 sale in Oct.
 
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Manufacturer specs don’t really matter anyways as the spacers are not within spec either... the 305/75R18 are technically for 8.5-11” rims too but they fit just fine on the factory 8’s


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305/75r18? Do they exist?

Any 18" tire will fit on an 18" rim, the issue is good wear and performance.
 

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Go to your tire manufacturer's website and they'll have a range of approved wheel widths. TOYO has a measured wheel width marked on there site, so you know what size wheel they used for reporting their measurements.
 
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