that depends on what your Jeep has for stock gears.
3:07's or 3:73's.
3:07's 31" tire And what are you looking to do with your Jeep?
Rubicon Rich ,05 TJ Rubicon: PatriotJeepers.com
86 CJ7 258,T18,Scout Dana300,twin sticks,Dana44's,4W Disc, locked,35's,YORK OBA,Warn 8274,fullcage.
51 M100 1/4 ton Jeep trailer