3. Full-Traction includes eight Currie-built Johnny Joints designed specifically for this kit. Each joint offers 30 degrees of unrestricted movement in any direction. The wear bushings found in these rod ends are made of a high-density shock-absorbing urethane that encases the inner ball. The ball itself is heat-treated steel and is cross-drilled for through-bolt lubrication. The outer shell is 0.180-inch DOM tubing, and the retaining washers are heat-treated steel. This 2-inch joint also comes with 2 1/2 inches of welded-on 3/4-inch threaded shank to ensure more than enough engagement and adjustment.