17 X 8 factory wheels with 35" X 12.50 tires ?

R.L.K. · May 24, 2017

Is this possible , or.Safe ?

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Mudder · May 24, 2017

I'd think it's possible and wouldn't be unsafe at all. Idk if you'd need some spacers but I'd think not with the 8" wheels.

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Rampant · May 24, 2017

I think that wheel may be a bit narrow for that much tire, if nothing else. The sidewalls would be ridiculously tall in my opinion.

Unsafe? For highway use, that's a lot of mass for that size wheel.
A quick look on tirerack.com shows they don't sell sets with that size combo. Here's mine with 35x12.5x20 factory wheels to give you an idea.

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R.L.K. · May 24, 2017

I have well over 100k with a 15" wheel with 40 , 42 & 44" tall tires , the high tire sidewall is certinly not the issue , my Q is the 8" wide wheel accepting ( safely ) with a tire that's 12.5" wide ...

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69GWC · May 24, 2017

Yes they will be fine, shoot I ran 35×12.50×15 on 7" rims with zero problem. I also ran 35×12.50×17 on my stock 07 Cummins rims witch were 8".

Just watch your air pressure so they wear even.

69GWC · May 24, 2017

Also the side wall will be the right height, after all these trucks are not lowriders..lol

my Cummins on stockers and 35s

R.L.K. · May 24, 2017

69GWC said:
Also the side wall will be the right height, after all these trucks are not lowriders..lol

my Cummins on stockers and 35s

I agree , 17 " wheels are great !

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Rampant · May 24, 2017

R.L.K. said:
I agree , 17 " wheels are great !

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I'm on tapatalk so I can't see your truck info, but if I remember correctly you're running a 1/2 ton, correct? Personally I wouldn't run that size on that truck without a lift and a good offset. But, that doesn't mean it's not possible or unsafe.

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R.L.K. · May 24, 2017

Rampant said:
I'm on tapatalk so I can't see your truck info, but if I remember correctly you're running a 1/2 ton, correct? Personally I wouldn't run that size on that truck without a lift and a good offset. But, that doesn't mean it's not possible or unsafe.

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You can see my profile on Tapatalk , just click on or touch R.L.K.

Yes a 1500 .

I'm asking a Q on tire & wheels my friend , not what I would run right now ...

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Mudder · May 24, 2017

RLK, your an Arkansas boy. Idk how old you are but when I was in high school back in the 90s every body and their dog was running 315/75R16s on tbar cranked Z71s. Those were factory 16x7s. A 12.5" tire will fit fine on an 8" rim, no matter the wheel diameter.

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69GWC · May 24, 2017

There are thousands of people running 35s on 1500s with just a leveling kit, perfectly fine with the right offset wheels, and by right offset I mean keeping the tires under the truck not beside it...lol

R.L.K. · May 24, 2017

Ha ha , RAZORBACKS RULE MY BROTHER !
I'm 45 and I was in high school in the early 90s as well ( Pine Bluff area ) Whitehall , Arkansas .

We were lifting trucks , dominantly 40" -44" SUPER SWAMPERS 16 - 18 " wide on 15" X 10 " wheels .

Mud riding was a daily / weekly event other than that it was chasing skirts , playing football and working on farms for $$

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AFMoulton · May 24, 2017

R.L.K. said:
Is this possible , or.Safe ?

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You can, but will need some spacers. I cannot remember the size spacer you need but Quietpeen knows this stuff off the top of his head. I went with 17x9 with a 0 offset for 295/70r17's. Should be here this week and I'll snap some pics for you.

The factory wheel is a 17x7 with a +25mm offset. To run 35's you would need a -12mm offset at least. It can be done with some wheel spacers, 1.5" wheel spacers should work to clear the tires.

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R.L.K. · May 24, 2017

AFMoulton said:
You can, but will need some spacers. I cannot remember the size spacer you need but Quietpeen knows this stuff off the top of his head. I went with 17x9 with a 0 offset for 295/70r17's. Should be here this week and I'll snap some pics for you.

The factory wheel is a 17x7 with a +25mm offset. To run 35's you would need a -12mm offset at least. It can be done with some wheel spacers, 1.5" wheel spacers should work to clear the tires.

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That's what I thought .Thank you sir !
I want 17" wheels badly , just want to get rid of my factory 20" GIANT wheels as I hate the look .
I'm a big rubber guy not a big wheel guy .

I have a buddy here ( M2MODS / MPGRIMM2 ) with a fantastic deal on his factory 17s .... I've ran 1.5 to 2" spacers many times and for probably over 100k with no issues ( proper maint )
I just need to get me some 17 X 10 wheels with -12 mm offset. ..

Thanks all for your response!

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Rampant · May 24, 2017

Ahh... Good to know.

So to your question... as I'm sure you're painfully aware, "unsafe" is a very highly contested term. Especially given our chosen profession. What one guy has done every day for 20 years without one safety-related issue may be considered "unsafe" by the rest of the world, if not just big brother.
I've run a lot of trucks and many different combos, but never that particular one. I don't see why that would be any less safe than any other combo that's just shy of conventional.

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R.L.K. · May 24, 2017

Thanks for your input & insight my friend .

Go HOGS

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17 X 8 factory wheels with 35" X 12.50 tires ?

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