Thanks.

 

305 or 315 I think

 

I am running 335/30/18's on 12" GT2 wheels.
My buddy is running 315's on stock 11" wheels.

 

I'm running 315/40/18 on 11's without issues.

 

I know Nitto 1's 315 fits no problem. What about Toyo Ra1's in 305?
colorado what tire brand?

 

The Toyo Ra1 in 305 shouldn't be an issue.

I'm running Kumho XS. The rears are 12.6 wide on these rims and the fit is just fine.

I've got 235/40/18s in ft. 315/30/18 in back.

 

how are those Khumos I was curious

 

I've only had them on for a few hundred miles now. In the dry, they're great, loads of grip and road noise is minimal.

In the wet, if not warmed up, they'll slide pretty easily. Once they're up to temp they're fine though. I wouldn't use them in temps less than 55 degrees though as it would be hard to get enough heat in them during normal driving.

I use them for my daily commute and they're just fine as long as we don't get any sudden microbursts with rain - which happen here occasionally.

Will have to put a few thousand miles on them before I can really make a great review though. So far, for the price, I'm happy with them.

 

I run 305 Mickey Thompsons and they fit stock rims nicely. No bulging. Wheel can definetly fit a 315 with no issues

 

I just ordered a set of Nitto NT-01's for my stock rims in sizes 245/40/18 and 315/30/18. When I get them mounted in a week or so I will report back.

 

Those fronts are going to be tight without spacers or something. My 235/40/18s hardly clear.

 

Bunch of guys I know are using them. Have to back some caster out up front so they will clear.

 

I've run them with 19mm spacers and no problems.

 

Can I use the 225.40.18 with 315.30.18?

 

You shouldn't have any clearance issues with that setup, but the revs per mile will be off a little. You'd be better off using 235/40/18 in front with those rears to match revs and avoid tcs issues.