CV-JOINT is a short name for constant velocity joint.
The joint is the connection between the axle and the wheel.
It can drive the front wheel while it is turning. The lubricate is
nessary for the CV-JOINT and it is easy to be mixed with dust and sand.
So CV-joint is protected by a CV-boot. If the CV-boot is splited, the
dust and sand may come in to the boot and mix with the lubricate and
for a long time it will evantually cause the damage to the CV-JOINT.
If you don't know when the boot is spli
