RCV Performance Big Bell CV Axles simply replace the weak Dana 60 U-joint axle shafts with a high-strength constant velocity designed for 2.5 ton Rockwells. Strongest option on the market.  CV shafts are just as tough at a straight angle as they are at extreme angles - where U-joints are weakest.  Ultimate CV Axles also eliminate U-joint binding to allow smooth transfer power to the ground. Ultimate CV Axles are low maintenance and operate with a smoothness you can feel - whether off road or on the street. And we back it all with a "No Questions Asked" limited lifetime warranty. Fits:  Dynatrac PROROCK XD60™ 72.5" wheelmount to wheelmount width for Jeep JK or JL with 40 spline locker and hubsAxle set includes right and left CV axle shafts, SST seals and installation tool, installation instructions, synthetic moly grease, and installation hardware. Black oxide coating is standard. Optional nickel plating is available for extra corrosion resistance in salty environments - contact us for details, or use our Custom Axle Configuration FormPart:Axle ModelTypeOEM Outer SplineOEM Inner SplineRCV Outer SplineRCV Inner SplineOEM Left Inner Axle LengthOEM Right Inner Axle LengthOEM Stub Length:Warranty Voided:Boot Technology:PROROCK XD60™ Big Bell Front Axle Jeep JK/JL in 4340. Includes left and right axles.Big BellNon Unit Bearing35354040N/AN/A"N/ANo Limit <br />

All RCV products are built to order ship times vary, most items ship in 1-4 weeks.