OEM: 43340-39545 JBJ7629 SB-T172L
Applicable Models: Toyota
Fitting Position:LOW L BALL JOINT
Ball joints consist of a metal housing and a stud that can swing and rotate within the housing. Bearings inside the housing are placed between the ball stud and housing to help reduce wear and friction. The socket is filled with grease to provide lubrication, keep debris and water out of the socket, and maintain noise free operation. A rubber boot, located at the opening of the joint, keeps debris out and grease in. Lastly, the assembly is closed with a method pressed-in cover plate.
Many original equipment ball joints are designed as sealed units. If the protective boot fails, water and road debris will quickly cause wear and ball joint failure. Some aftermarket ball joints use an improved greaseable design that allows lubrication to flush out contaminants to extend the life of the joints.