A pair of balljoints is included at the front suspension. The upper balljoint is an integral component of the upper control arm, which in turn, cannot be replaced separately-if its surface is worn or damaged, the control arm must be replaced. The lower balljoint is installed at the 
Steering Knuckle; this bolt is separable using particular tools for this process. If the lower balljoint is worn or damaged the knuckle will have to be removed and replaced and should be taken to a dealer service department or any other repairer.