Torq-Masters XJ and YJ CAD 1 piece axle shaft conversion Kit. This kit includes 2 seals and a CAD block off plate. Torq-Masters 4340 Chromolly Axle Shafts are an essential upgrade Offroaders looking to get the most out of their vehicle. Our Heavy Duty shafts are built to such high quality standards that we can offer an exclusive Lifetime Warranty, giving you piece of mind in the most extreme situations.