A PEUGEOT 405 ball joint consists primarily of two components a hardened-steel, ball stud and socket enclosed in a steel housing. The ball stud is attached to the steering knuckle and the socket with steel housing is attached to the control arm. A protective boot prevents dirt from entering the ball joint assembly. Ball joints are used on the front end of virtually every car and light truck.
PEUGEOT 405 Ball joints serve as the pivot points between the steering knuckle and lower and upper control arm suspension. This pivot action allows the suspension to travel up and down and tires to turn left to right. Ball joints support the entire weight of the vehicle.
Ball joints are located in the front suspension an inch or so behind the front tire. The lower ball joint is the pivot joint between the lower control arm and steering knuckle. The upper ball joint, if you have one is the pivot joint between the upper control arm and steering knuckle.
Most vehicles use permanently lubed ball joints that can not be lubricated. Aftermarket replacement ball joints often come with lubrication fittings. If your vehicle has lubrication fittings, the ball joints should be lubricated at every oil change. PEUGEOT 405 ball joints, along with other suspension components, should be inspected annually. PEUGEOT 405 ball joints can be checked for excessive side to side and, up and down play. Methods to check excessive play and amount of play vary; you should follow the manufactures procedures and specifications.