is a typical Drive Axle.
Front wheel drive vehicles have
two drive axles. One for each
wheel. Each drive axle has two
CV joints. An inner and outer.
is an outer CV joint from a
front wheel drive vehicle. The outer
CV joints connect to the two front
wheels. The inner CV joints are
connected to the transmission. The
power from the engine is transferred
by the transmission to the drive axles.
The drive axles cause the
wheels to turn.
are used to protect the CV joints.
components must be lubricated with a special grease. The
boots retain the
grease and keep dirt and water out of the
joint. Boots are
subject to wear and must be inspected often.
The protective grease will be lost in just a
few miles of
driving if the boot leaks. We suggest inspection at each oil
change and each time
the car is being serviced.
The CV joint must turn at high speeds and yet be able to
take the up and down
motion of the suspension system and
the turning of the wheel. The only barrier between the
component parts and the
environment is the boot.
"Clicking" or "Popping" during
tight turns indicates possible
Outer CV joint damage.
"Shudder" or "Clunking"
accelerating or de-celerating indicates possible
Inner CV joint damage