Dana 44 JK Rubicon Rear 35 Spline Selectable Locker For Use With 35 Spline After Market Axle Shafts;For Use With Jeep JK Style Thick Gears Only;For Use With 1/2in. Ring Gear Bolts; Shifter Sold Separately; Includes Differential Cover JEEP WRANGLER (JK) 70TH ANNIVERSARY ISLANDER MOUNTAIN RUBICON SAHARA SPORT UNLIMITED 70TH ANNIVERSARY UNLIMITED ISLANDER UNLIMITED MOUNTAIN UNLIMITED RUBICON UNLIMITED SAHARA UNLIMITED SPORT UNLIMITED X X 2007 2008 2009 2010 2011 2012 2013 3.6L ERB (220) Pentastar 3.8L (3778cc) GAS Ox Locker Ox Locker Dana 44 JK Rubicon Rear 35 Spline Selectable Locker - D44-JKR-35 D44-JKR-35 Differentials