Not sure if I'd go to the 315's but maybe someone with this gearing setup can comment.
I would not put a tire of this size on the tailgate. 1. It doesn't fit with the third brake light 2. it's heavy. My wifes 33's barely fit and were heavy. Might want to look at a bumper then tires.
My driving habits are the same 90/10. MPG's didn't really change much. A Rubi has lower gearrs so it's not great anyway. Still getting around 18/19 mpg.

 

I just put 35's on my 2012 with 3.21s. Honestly.. It's really not that bad. Way better than my 07 with 4.10s. I haven't got my procal yet, and haven't burned a whole tank of gas since I got them installed. My computer is showing 15 mpg. No idea if it is accurate. I'm going the spare, but only temporary. I will be ordering a bumper and tire carrier soon.

 

Will 35s fit on the stock rear bumper?

 

Finally took some pix today

 

35" BFG KM2's

 

Stock 18's powdercoated gloss black w/toyo 35's

 

Nice! Wheel spacers on those?

 

Yes, 1-1/2" spacers.

The stock 17, or 18's are IMO some of the best looking wheels for the JK......not sure why so many are so quick to ditch them.
Great thread!!!

 

[QUOTE=RacerXS;3180550]Stock 18's powdercoated gloss black w/toyo 35's

I like it! Rig looks awesome as well.

Did you paint them with the wheels on?

 

Want to do this but not a big fan of spacers