What are "Pro Series" control arms?

Pro series arms use forged joint joint adjusters at both ends. Our standard arms use a forged johnny joint at one end to allow flex, and a clevite mechanically bonded rubber bushing which is pressed into a CNC machined housing at the other end which better isolates road noise and vibrations. Customer who plan on competing, racing, and intend to abuse their suspension systems usually prefer the pro series arms. The johnny joint uses a harder urethane bushings which will hold up to abuse better. Customers who use their Jeep as a daily driver and a weekend warrior usually prefer a softer quieter bushing.