Cv Joints : Cv stands for constant velocity. The cv joints connect the vehicle wheels to the differential in which the power of the transmission can be transferred to the wheels. Cv joints are designed to flex as the wheels can be in different positions and turn radiuses. The cv joint basically can rotate the drive wheels while being able to allow the drive wheel to independently turn or absorb the bumps in the road. A cv joint can be an inner joint located closest to the differential or an outer joint closest to the drive wheel. A rubber boot is used to cover the joint and hold the grease in the joint to lubricate it.
Basic cv joint designs include the Tracta joint, Rzeppa joint, Thompson coupling, Tripod joint, Double Cardan joint and the Weiss joint. The Rzeppa joint is the most common type used on front wheel drive and rear wheel drive cv joints. The Rzeppa joint uses 6 balls and grooves within a spherical housing. A cage is used to hold the six balls onto the six spoke gear and within the grooved outer cup that connects to the wheel.
When a cv joint fails, the vehicle may not move since the wheel will not be connected to the differential. Early signs of cv joint problems include broken boots, vibrations and or clicking sounds usually when the steering wheel is turned to a far left or right position. Cv joints can easily be checked my a mechanic to ensure that they are function-able and safe. Guy’s Automotive can check your cv joints and replace them when necessary. Usually the entire cv shaft is replaced as an assembly however individual cv joints can be replaced if this is more cost efficient. Call Guy’s Automotive today for all of your cv joint replacement needs