What is a Constant Velocity (C/V) Joint?
A C/V Joint is a type of drive shaft universal joint that allows linear movement as well as lateral movement. This drive shaft configuration is used on front wheel drive autos, 4-wheel drives, and rear wheel drive vehicles with independent suspensions. The C/V Joints allow the drive shaft to move up and down with the suspension and left and right as the vehicle is steered. Each drive shaft has two C/V Joints to allow for this movement. The bearing components are lubricated by grease and the whole assembly is sealed with a rubber bellows-type boot.