Phase-4 Rear Trailing Arm Joint Package

The WSSX series is FK's wide series which has a 17-4 Stainless Steel heat treated body that is Teflon (PTFE) coated. This WSSX16T UniBall also features a 440C Stainless Steel heat treated ball. The Spherical Bearing is commonly called a Uni-Ball or Mono-Ball in the off-road industry. This type of Commercial Bearing is now commonly used as a replacement for a Ball-Joint on upper and lower control arms. Uni-Balls can be control arm and mis-alignment specific. If you are unsure that this part is correct for your application we suggest measuring your existing Uni-Ball currently installed. Obtaining an accurate measurement will require removal of the Uni-Ball from the cup.

A heat treated chromoly heim with hard chrome finish. A 52100 bearing also heat treated steel also hard chrome plated. With a teflon impregnated nylon injection molding. Perfect for lower link arms that will see plenty of abuse.