I installed a set of JKS Quicker Disconnects on the XJ. The installation is really easy. The toughest part was getting the stock pressed-in studs out. I've read nightmare stories about getting these things out. All sorts of banging, cutting, grinding, torching, etc. I also read about using make shift presses and thats the way I decided to go using the Harbor Freight Ball Joint tool. The passenger side was the worst. The tool just barely fit because of the track bar, etc., and I had to use a big socket to have enough to press against. I cranked the heck out of it and it wouldn't budge. Finally, BANG! It popped out. The driver side pressed out, smooth like buttah. 