Installed left and right outer front axle boots. It was pretty easy removing the axle shafts and working with the axle on bench in vice. The only difficult problem that was encountered had to do with removing the castle nut off of the driver hub. This axle had been replaced and it was clear that it as way over tightened. The tabs on the castle nut were completely smashed down. In the end we had to use a heat torch to loosen it up so that the impact could remove the nut. After that everything was easy peasy.