I don't understand the question, but yes, a 33" tire is a 33" tire regardless of wheel size. The only dimension that changes is how tall the sidewall of the tire is and that affects ride quality. Since you're changing tires and wheels, might as well go smaller with the wheels to save some ride quality while you're at it.
~Lots of modded Jeeps and a Toyota 4Runner~
My favorite quote from the press release.. sad but true: "Chrysler claims its products, especially the Jeeps, can handle all sorts of terrible conditions, churning through muddy swamps, climbing mountains, and crossing rivers. Turns out they cannot even handle a car wash."