Smittybilt SRC Roll Cage Kit 76904 2011-12 JK Wrangler Unlimited and Rubicon Unlimited;4-door models;6-piece kit;Manufactured from 1420 .120 Wall DOM;The Knuckle attaches using a unique pivot on one end;Grade 14 fasteners;Satin black powder coat finish;5-year limited warranty;No drill installation;Works with all soft goods, factory and aftermarket tops;Front down bars have built-in tubular grab handles;Requires modification to factory roll bar covers JEEP WRANGLER (JK) UNLIMITED 70TH ANNIVERSARY UNLIMITED ISLANDER UNLIMITED MOUNTAIN UNLIMITED RUBICON UNLIMITED SAHARA UNLIMITED SPORT UNLIMITED SPORT S UNLIMITED X 2010 2011 2012 2013 2014 2015 2016 3.6L ERB (220) Pentastar 3.8L (3778cc) GAS Smittybilt Smittybilt SRC Roll Cage Kit, 2011-2014 4-Door JK Wrangler, 6-Piece - 76904 76904 Roll Cages & Roll Bars