RockJock Johnny Joint Rod End 2 1/2in Weld-On 2.440in x .570in Ball Ext. Greased

If you're building a custom suspension system from scratch, or modifying an existing one to get more flex, this weld-on Johnny Joint rod end from RockJock is a solid piece to consider. It's designed to give fabricators a way to add significant articulation to suspension arms, links, and track bars where a standard heim joint might not offer enough range of motion.

What sets this Johnny Joint apart is its ability to move up to 30 degrees in any direction, which is notably more than the typical 22 degrees you'd get from a heim joint. This extra movement comes from the high-density urethane bushings that surround the heat-treated center ball, providing a bit of cushioning and preventing the harshness you might feel with a metal-on-metal joint. The center ball is drilled for lubrication, and the whole assembly is retained with heavy-duty washers and a snap ring. The outer shell is made from .180-inch wall DOM tubing that you can weld directly to your suspension components, and it even has a zerk fitting so you can easily grease it up to keep it working smoothly.

This particular joint has a 2 1/2-inch outer diameter, a mounting width of 2.440 inches, and a 0.570-inch hole for your thru-bolt. It's a well-built component that gives you the flexibility needed for serious off-road articulation.