Revolution Gear and Axle USA MADE 4340 Chromoly Front Axle Kit, fits 2007-18 Jeep Wrangler JK Rubicon with 30 Spline Axles. This kit only works with the factory lockers. All Revolution Gear and Axle's USA Made front axle kits utilize larger 1350 Style U-Joints providing a substantial increase in strength over the smaller 5-760X U-Joint and allows extra clearance for tighter turning. This Revolution Gear and Axle Front Axle Kits comes with Qty2 30-Spline USA MADE 4340 Chromoly Inner Axles Qty2 30-Spline USA MADE 4340 Chromoly Outer Stub Axles Qty2 Dana Spicer 5-7166X U-Joints Qty8 Full Circle Snap rings to hold it all together. Revolution Gear and Axle USA MADE Axle Kits are backed by a Limited Lifetime Warranty Warranty covering manufacturing defects and axle breakage, bent axles and twisted splines. This warranty is non-transferable. U-Joints are only covered under warranty against manufacturing defects for 1 Year (Front Axle Kits with Revolution Gear HD Chromoly U-Joints carry a limited 10 Year Warranty). Parts subject to normal wear are not covered under warranty; this includes bearings and seals. Revolution Gear and Axle reserves the right to either axle replacement or credit after the first warranty claim.