If using 35" or larger tires please purchase as required. I got them to replace a part I had to use after a ride on the bike. Hit a few rocks (and not the fact that I've been riding them for a few years lol) and on the way home it kicked off I had a little wobble in the front of my JK. A quick check pointed me to a worn ball joint on the passenger side. Exchanged and the hesitation was gone. Always handy when you're on the go.