If anyone installs a aftermarket track bar and has trouble getting to the nut through the mount on the axle, use a S wrench. I trimmed the bolt so it only came through the nut about a 1/16" so I could get the wrench back out once the nut was tight. Sure there are other ways to do it if you don't have a factory nut with the arm, but the set of wrenches was cheaper than a replacement bolt and nut