For fabricators and suspension system builders. Currie's Johnny Joints offer 30 degrees of unrestricted movement in any direction as compared to 22 degrees on a common heim joint. The bushings in the Johnny Joint rod ends are made with a high-density - tough 88 urethane that encases the inner ball. It is a very durable material, and is impervious to weather. The special center ball is heat-treated steel for extra strength, cross-drilled for Thru-bolt lubrication, features a .562 inch Thru bolt hole, and a 2.365 inch mounting width. The outer shell is .180 inch DOM tubing, and the retaining washers are heat-treated steel. 9/16 inch greasable bolt with nut and washers included.