IF you had a CJ you could do it, but NOT with a JK. Your Jeep has more advanced, sensative, components that require extended modifications in order to run 35" tires.
I like my CJ with 3" of lift and running 35's...
No steering modifications, drag-link, drop pan...etc. etc. etc. And all done for thousands less I will add.
BUT, you probably have AC, leg room, carpet, cup holder, cig. lighter, operating defroster, wipers that work, and heat just to name several of the ammentities I give back. BUT, I can charge up a camper for three days