I have all 5 of my ball joints on the 01 Linked. I like them, easy install and greasable. They are very tight joints after install. My track bar joint started to pop recently and I rebuilt the Link and added a spacer to tighten it up. Works great now. It had been on for about 5yrs and 90K miles. However, the articulating surface of the ball and track bar was noticeably worn. The axle end bushing also looked a little worse for wear. I figure next time it starts popping, I'll just get a new bar, probably Kore. One other note: The size of the Link makes mine touch the front diff. cover on full compression of the suspension. I ground it down some to help. I don't bottom my suspension very much and it only scrap a little so it isn't a problem. Some of the newer track bars address this. I think the Luke's fix is good, but if you keep the truck long enough, you'll probably end up replacing the whole bar eventually. The track bar takes do much stress and the joint is at such an angle, the stock bar may never last forever, Linked or not. But if $70 will get an extra 200K miles out of it, that's not bad. I fully expect the other 4 joint to last indefinitely, with an occasional rebuild.