ZF Services is now offering a safe and cost-effective solution for ball joint replacement in aluminum control arms with its innovative Ball Joint Safety Kit from Lemförder. By using a safety locking ring, the new ball joint can be tightened to the existing control arm with the correct locking-torque and arm retention. The Lemförder Ball Joint Safety Kit is available for several late-model passenger car and light truck applications, including the 2003-2006 Ford Crown Victoria.