20x12 rim and tire sizes available for use

[Mike1220]

Hey all, so my plans originally for a 4" lift with 35s has taken turn and as of right now I will be going with a RCX 7" lift (I decided on RCX because I can keep my turn radius as close to stock as possible and after driving in a few trucks on dealer lots that were on 6" lifts and 35s with kits that restricted the turn radius, I can't deal with that wide of turns all the time.

 

 

I have talked to a few wheel/tire websites that do deals when you order a wheel and tire package. But haven't been told by any what kind of issues I could run into with a 12.5" wide tire on a 12" wide rim. I can't imagine that this could end well. But like I've said plenty of times in the past, this is my first truck and first lift/rim/tire change experience. Ive changed tires on my old Yukon before by just to something that was the same as stock so changing everything is new.

 

If anyone could give me any insight on what kind of issues I could expect by running a 35x12.5x20 tire on a 20x12 rim, it would be much appreciated. Even better if any one has anything similar.

 

Also, could I run a 10" rim and possibly get the tires to stick out as far? I am wanting to get the tires to stick out 2" past the stock fenders so that I can put on some 2" extension fender flares from Southern Comfort Automotive and the tires will line up, or at least com extremely close to lining up, with the fender flares

 

I don't plan on getting my lift until the summer, probably around the middle of summer to be exact.

 

Thanks in advance

 

- Mike

[baggedlvintegra]

Not trying to be a d*ck but why not wait until you can actually do the lift/wheels/tires to discuss and make a decision. Just in the little I read on the forums you've changed your mind 17 times and ask repetitive questions that don't drive an actual decision. Sounds harsh but why waffle on it for half a year..

 

A 12.50 tire on a 12 wheel is perfectly fine, it is very common.

 

If you want to READ about real lifts and wide stances look on gmfullsize or other forums. This forum is all about leveling kits and wheels Discount Tire recommends...

Edited January 11, 2015 by baggedlvintegra

[Mike1220]

Not trying to be a d*ck but why not wait until you can actually do the lift/wheels/tires to discuss and make a decision. Just in the little I read on the forums you've changed your mind 17 times and ask repetitive questions that don't drive an actual decision. Sounds harsh but why waffle on it for half a year

 

 

I've thought of that, but if I still had the original 4" lift with 35s idea going and hadnt inquired about it, then I would still have the idea that it would work and then later when I go to get the lift, rims, and tires, and find out it didn't work, I'm now back to the drawing board. Ive been wanting to stick with a 4" so I was trying every possible route I could think of but each either seemed too expensive in the end for me to really want to go it or it would seem like a great idea at first and then I would realize just how much it wasn't really what I was looking for. Now that I have finally decided that a 6" lift is the way to go, I'm just narrowing down my rim options at this point. I want a 35x12.5x20 tire and a 6" so I just need to know what kin of 20" rim will be able to push the tires out far enough but not be too wide to cause issue.

 

Like you said, I have changed my mind several times, but each time it was nothing major, just a few details changed to narrow down to something I wanted. Hey, you've changed your rims and tires about as many times as I've changed my mind on what I want for rims and tires lol. But on a serious note, I have been looking for about a week now and haven't found a definitive answer. Each company who I've asked who would mount and balance the rims and tires before sending them to me have either not had any comment on how the 12.5 tire would do on a 12 rim or they just say "it SHOULD be okay, but we can't guarantee that you won't have any issues" But none could tell me what kind of issues I could run into.

[baggedlvintegra]

I'll help you out, again .

 

#1 Google search 35x12.50x20 20x12 and you will see tons of examples.

 

#2 with only 6" you will rub pretty bad with 35s on x12" wide wheels. At 5"s on only 33s I rub fender side.

 

#3 here are 2 pictures I just took the other day.

 

This is x10" wide wheel -24 offset 12.50" wide tire

 

 

This is equivalent x12" wheel -44 offset 12.50" wide tire

 

Now you can easily see how each "sticks out"

 

#4 The difference in you changing your mind and me changing my wheels is I actually do it I don't just talk about it

Edited January 11, 2015 by baggedlvintegra

[Mike1220]

I'll help you out, again .

 

#1 Google search 35x12.50x20 20x12 and you will see tons of examples.

 

#2 with only 6" you will rub pretty bad with 35s on x12" wide wheels. At 5"s on only 33s I rub fender side.

 

#3 here are 2 pictures I just took the other day.

 

This is x10" wide wheel -24 offset 12.50" wide tire

 

 

This is equivalent x12" wheel -44 offset 12.50" wide tire

 

Now you can easily see how each "sticks out"

 

#4 The difference in you changing your mind and me changing my wheels is I actually do it I don't just talk about it

 

 

haha, well the difference is I want to make sure I just do the lift and rim/tire change once in reality but I don't mind changing my mind a few times before I go through and spend the money to change everything out.

 

Thanks for the pictures. I will try google searching again and where do you rub? Is it just on the carpet lining or is it on sheet metal? I have asked different lift companies where I would be rubbing and each time i get the same thing "you will have rubbing issues. We did not record what rubbed or where, but only that there as rubbing issues". I don't mind cutting out some of the carpet lining but don't want to start having to cut any sheet metal to prevent rubbing. And I want to avoid issues like with the McGaughy lift on a 0 offset 20x9 where the rim would rub on the control arms. Something that can't be cut out even if I wanted to.

While I am google searching, do you think I will have any issues with putting a 12.5" wide tire on a 12" wide rim? Or is there anyway I can get a 10" wide rim to give me the same width but without having to put wheel spacers on the front. I don't mind putting spacers in the rear but don't want them upfront because then the local shop that will install the lift won't want to warranty any front end issues.

[baggedlvintegra]

You would be rubbing sheet metal, on the lower part of the fender on the door side.

 

I already answered your 12.5" tire on a x12 wheel question, this is extremely common and in no way a problem.

 

No you will NEVER get a x10 wheel to stick out as far as a x12 wheel without running wheel spacers.

[frenchsquared]

How far wheels stick out is about offset.

You can get an 8" wheel to stick out 3 or 5 inches if you get the correct offset.

 

a 20x9 with a -12 offset will stick out about 2"

 

A 20x12 with a +24 offset will probably sit flush and hit the inside wheel wells.

Guessing on that, I did not do the math, just making a point.

 

Google "Wheel Offset"

[frenchsquared]

No you will NEVER get a x10 wheel to stick out as far as a x12 wheel without running wheel spacers.

 

I agree with 99% of what you say, and typically that is true.

But... think about a reversed offset wheel like 13" dayton wires.

You get some insane offset and you can push a 10" wheel out as far as a typical 12" wheel.

 

 

------

 

OP,

Dude, its a 12.5 inch tire on a 12 inch rim. Why would it not work?

 

it is a perfectly normal range. Why are you hell bent that it wont fit.

You can ballon a 10" tire on a 12" rim if you really wanted to. Tuners do it all the time.

Looks like crap and shreds tires but you can do it.

[KMGZ400]

12 wides with 35's most likely will rub even with a 6 inch lift.. Be prepared to do some cutting and trimming

[txtroop1771]

Hey all, so my plans originally for a 4" lift with 35s has taken turn and as of right now I will be going with a RCX 7" lift (I decided on RCX because I can keep my turn radius as close to stock as possible and after driving in a few trucks on dealer lots that were on 6" lifts and 35s with kits that restricted the turn radius, I can't deal with that wide of turns all the time.

 

 

I have talked to a few wheel/tire websites that do deals when you order a wheel and tire package. But haven't been told by any what kind of issues I could run into with a 12.5" wide tire on a 12" wide rim. I can't imagine that this could end well. But like I've said plenty of times in the past, this is my first truck and first lift/rim/tire change experience. Ive changed tires on my old Yukon before by just to something that was the same as stock so changing everything is new.

 

If anyone could give me any insight on what kind of issues I could expect by running a 35x12.5x20 tire on a 20x12 rim, it would be much appreciated. Even better if any one has anything similar.

 

Also, could I run a 10" rim and possibly get the tires to stick out as far? I am wanting to get the tires to stick out 2" past the stock fenders so that I can put on some 2" extension fender flares from Southern Comfort Automotive and the tires will line up, or at least com extremely close to lining up, with the fender flares

 

I don't plan on getting my lift until the summer, probably around the middle of summer to be exact.

 

Thanks in advance

 

- Mike

 

 

35×12.50's on 20x10 Fuel hostage -24 offset. 7" RCX lift. They stick out about 2" and don't rub at all.

[frenchsquared]

nice truck...

[txtroop1771]

nice truck...

Thank you! Still have some things to do, but it's coming along bit by bit.

[blackout07]

This thread made me lol.

 

Don't let turning radius be the reason you SETTLE for RC. At least say it's due to price. My turning radius is excellent with bds.

[DenaliDually]

Hmm. I think txtroop1771 summed this one up... but I just want to mention one thing on the matter. DONT PUT WHEEL SPACERS ON YOUR TRUCK!

 

2015 Denali 3500 DRW, Michelin ltx, 4x4

[Skating rclb sierra]

I’m running 20x12s on 33s with a 6” rcx lift and a slight level shim under the strut. I have zero rub on a full turn and full flex while turning (off-roading) Every chevy requires a minor trim On the cab side if you know what your doing it’s easy to make it look stock and classy (tons of videos online showing how to do this) because your putting a circle tire in a square wheel well with 6” of offset (I’m at about -100 offset) Do the math lol it equals you needing as much space as possible to stuff that tire in there sadly At full turn. Any ford or dodge does not have this problem as for they have circle wheel wells not square like gm or chevy. You have any questions or need any pics let me know I’m glad to help as well I’d hop on Instagram that’s a great learning tool for guys wanting to do what your doing. Ps never do a 4” you’ll regret it and be buying a 6” within two months (I say this from personal experience)

Edited February 7, 2020 by Skating rclb sierra
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