What Is A CV Axle? (And How To Tell When They Need Replacing) – SlashGear

Without a physical inspection to check the CV boots, the first sign of a broken CV joint is a noticeable clicking sound when turning the steering wheel or moving at speed. In some cases, a failing inner CV joint will crack, rattle, or knock when going over speed bumps (or when the front suspension makes a sudden up-and-down motion).

How much does it cost to replace a CV axle?

Depending on the type of vehicle, replacing a CV axle would cost around $350 to $1,500 in parts and labor. You can save money if you do it yourself, but replacing a CV axle requires knowledge and tools to do it efficiently, so it’s best to consult a garage, repair shop, or dealership if you’re not into intense DIY repair jobs.

The excellent news is that you don’t need to replace the CV axles in pairs. Mechanics would typically recommend changing the CV joints in pairs (especially if you have an older or neglected car). However, replacing only one is generally acceptable if the other CV axle is still in tip-top shape.

Finally, there are things you could do to prevent early deterioration of the CV axles in your car. For example, try avoiding huge bumps, ruts, and humps on the road when driving, and try not to steer or apply the brakes when going through potholes to lessen the impact on the car’s suspension and driveline components. Moreover, ensure the CV boots are intact and free of damage. Replacing a pair of rubber boots is much cheaper than an entire CV axle.