Do 20x12 wheels rub on a 10 jk sahara unlimited without any modifications.

 

ummmmmm it would depend on your tires and backspacing of the wheels.....

 

20x12 wheels

 

Maybe he means 20" rims that are 12" wide?

 

Yes exactly that.

 

So like I originally replied, it will depend on the backspacing of your wheels AND the tires you put on them. Without knowing the tire size we can't answer your question. It will also depend on what you're using your Jeep for. If you're building a mall crawler then you can go bigger tires, if you're off roading then you have go stay smaller, although I don't know why you would want 20's for offroading....

 

Honestly someone told me to and I was gullible. But now I've decided 17 rims w 33 tires. I also want to add a four inch lift to it. Do you think 33 is too small. If so what's biggest without gear changing.

 

If you have a manual you can defiantly go to 35s without regearing.

 

Automatic.

 

I would stick with 33's if you don't plan to regear. But I wouldn't do over a 2.5" or 3" lift with 33's. A 4" lift would look much better with 35's. And good idea on sticking with the 17" wheel size.