When Do You Need to Replace Drive Axle Boots?

Yearly maintenance is an absolute must for any car. You never know when something will go wrong with your vehicle, and some precautions will go a long way to help you avoid highly sizable repair costs. 

One of the more overlooked elements of such maintenance is a visual inspection. Some car parts show wear and tear and can be easily identified as faulty or unusable. It is especially true for axle boots, which play a minor role in your vehicle’s functioning. 

In this article, we will talk about drive axle boots. We will explain what role they play. talk about the replacement process and discuss symptoms of its faultiness. 

What Are Drive Axle Boots?

Drive axle boots are also called CV boots. The abbreviation stands for constant velocity. This refers to the axle on your vehicle that provides power to the wheels from the transmission, allowing movement at a steady or constant rate of speed. Since CV boots play a crucial role in suspension movements, they need to remain flexible to maneuver just as the car does. 

A drive axle boot is supposed to protect the CV joint from becoming dirty or filled with debris. Because this joint is also greased, faulty CV boots could cause the filth to build up in your vehicle and render movement non-optimal. 

As the boots are made of plastic or rubber, they are prone to breakages or tearing, leaving the driver to deal with various consequences. 

Symptoms Of Faulty CV Boots

While the drive axle boots are not that complicated, proper inspection is always crucial. You simply need to know where to look to prevent long-term issues altogether. However, these boots do show a couple of tell-tale signs of failing.

Intense Vibration

A thoroughly contaminated CV joint could be a problem if you hear a rattling noise or distinct vibration from the suspension. Once the boots fail at protection and allow dust, dirt, debris, and water to settle in, they cause severe damage, resulting in strange noises. 

Noises While Turning The Wheels

Along with vibration, you may experience other noise coming from the axle. These may be rattling or clicking and are typical for joints damaged due to worn-out boots. If encountered, such an issue requires you to visit the nearest auto shop as quickly as possible.

Leaks From The CV Boots

Since CV boots also lubricate the joint, they can sometimes accumulate excessive wear and tear. In such a scenario, you or a car mechanic will notice that grease will drip on the car's underside or within the wheel itself. It clearly shows that both components could have sustained damage and require replacing. 

Replacing The Drive Axle Boots

CV axle boots last for quite some time (80,000 miles) and are not items needing periodic replacement. But you absolutely should inspect them at least once a year, or even more often on cars with high mileage. They are most affected by prolonged off-road driving or heavy use in transportation-industry conditions.

However, it is possible to drive around with a torn CV boot. But, in all actuality, this will inevitably lead to even more severe damage and call for extensive repairs. If a small tear in the boot appears early, only minor repairs will do, but the axle and the joint may have to go.

Summary

Trust us when we say that you don’t want to deal with CV boots that received damage. Outer ones near the wheel are more prone to cracks or tears than the inner ones. So stay cautious and look for any leaks or symptoms we provided in this article. If you are unsure how to deal with such an issue yourself, turn to qualified mechanics or dealers.

Other than that, always stay on top of maintenance and give your vehicle an occasional visual inspection before driving. 

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