REVOLUTION GEAR DISCOVERY SERIES JK Rubicon D44 Revolution Gear & Axle Discovery Series D44, 4340 Chrome-Moly Front Axle Kit for 07-15 Jeep Wrangler JK Rubicon, 30 spline kit ONLY works with factory locker. Kit comes with 2 inner axles, 2 outer stub axles, 2 Dana Spicer 5-7166X U-joints and... MSRP: Was: Now: $641.99 Add to Cart The item has been added