CREEPER JOINT REAR RADIUS ARMS TF532 These heavy duty rod ends are ideal for today’s flexible suspension systems. Super strong, Creeper Joints will take years of punishment. The outer shell is a single forged piece. The inner flex ball is made from 8620 tool steel and rides on high quality polyurethane bushings. Heavyduty, hardened steel washers hold the joint together. Creeper Joints are super flexible and allow for up to 40 degrees of movement. A threaded grease fitting is provided on top for lubrication. The flex ball is drilled for cross lubrication flow from the shell to the link mount bolt. The TF529 rear radius arms are designed to allow massive unrestricted, stress free rear axle movement. Made from super strong 1 ½” diameter x 5/16” wall thickness CDS tubing with a double crank to provide maximum clearance.