I have 20" rims with 33" tires with no lift kit and the wheels rub a bit when I make sharp turns. I want to keep the rims but I also want to make the tires 35". My question is how much do I have to lift my JK in order to have good clearance with 20' rims and 35' tires.

 

How much are you wheeling? If its on the road you need to trim your air damn only.

 

It all depends on how much wheel it. If you want a good amount of travel you should go to a 2.5" lift. If you are only concerned about rubbing on the road and not on offroad then you can just trim the air dam as suggested above.

 

Just add some wheel spacers, and trim the fenders no need for a lift.