Symptoms of a Bad or Failing Axle Shaft Seal

Schedule CV Axle / Shaft Assembly Replacement
Service Area

$196.15 - $1,079.35

Price range for all vehicles
Average rating from 1,389 customers who received a Axle / CV Shaft Assembly Replacement.

The CV axle shaft seal is a rubber or metal seal that is located where a vehicle’s CV axle meets the transmission, differential, or transfer case. It prevents fluid from leaking out of the transmission or differential housing as the CV axle rotates when the vehicle is in motion. In some vehicles, the axle shaft seal also helps to keep the axle shaft in proper alignment with the transmission.

CV axle shaft seals are usually located along the surface where the CV axle enters the transmission for front-wheel-drive (FWD) vehicles, or at the differential for rear-wheel-drive (RWD) vehicles. They serve a simple yet important purpose, and when they fail, they can cause problems for the vehicle that will need to be serviced. Usually, when the CV axle shaft seals fail, the vehicle will produce a few symptoms that can notify the driver that there may be a problem.

1. Signs of leakage around the seal

One of the first signs that a CV axle shaft may need to be replaced is the presence of leaks. As the seal begins to wear, it may begin to leak slowly and cover the area immediately around the seal with a thin layer of gear oil or transmission fluid. A small or minor leak will leave a thin layer, while a larger leak will leave a noticeably greater amount.

2. Puddles of fluid

One of the most common and most noticeable signs of a problem with one of the vehicle’s axle shaft seals is a puddle of fluid. When the axle shaft seal fails, gear oil or transmission fluid may leak from the transmission or differential. Depending on the location of the seal and the severity of the leak, a bad seal may sometimes cause the differential or transmission fluid to leak out entirely. A leaky seal should be addressed as soon as possible, as a transmission or differential low on fluid because of a leak can quickly become damaged by overheating.

3. Axle shaft pops out

Another symptom of a potential problem with the CV axle shaft seal is the axle constantly popping out. In some vehicles, the axle shaft seal not only seals the transmission and axle mating surfaces, but it also acts as support for the CV axle. If the seal becomes damaged in any way, it may not only begin to leak, but it may also no longer be able to support the axle correctly and may pop out or come loose as a result. A shaft that has come loose would require the shaft to be correctly installed before the vehicle can drive again.

Because the CV axle shaft seals are what keep the fluid in the transmission and differential, fluid may begin to leak when they fail, which will put the transmission or differential in danger of overheating and becoming damaged. For this reason, if you notice that your CV axle seal is leaking or suspect that it may need to be replaced, have a professional technician, such as one from YourMechanic, determine what the correct course of action may be. They will be able to replace the CV axle shaft seal for you if needed or make any other repairs as necessary.


Next Step

Schedule CV Axle / Shaft Assembly Replacement

The most popular service booked by readers of this article is CV Axle / Shaft Assembly Replacement. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM. We currently cover over 10k cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent CV Axle / Shaft Assembly Replacement reviews

Excellent Rating


YourMechanic CV Axle / Shaft Assembly Replacement Service

Average Rating

4.9/5

Number of Reviews

1,389

Rating Summary
1,303
50
9
9
18
1,303
50
9
9
18

Joaquin

3 years of experience
84 reviews
Joaquin
3 years of experience
Lexus RX300 - Axle / CV Shaft Assembly Replacement (Passenger Side Front) - Plano, Texas
Joaquin arrived early and completed the job timely. He was also very respectful, knowledgeable, professional and friendly guy to talk to. He provides a level of trust often not found in this business and I would reccommend him for your repair needs.
Hyundai Veracruz - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Plano, Texas
great job, very prompt, explained all that needed to be done and why. would certainly ask for his services again. Bill

Matthew

31 years of experience
647 reviews
Matthew
31 years of experience
Land Rover Range Rover - Axle / CV Shaft Assembly Replacement (Passenger Side Front) - Williamsburg, Virginia
Matthew was great! He was on time, professional, knowledgeable, friendly and finish the work ahead of scheduled. He took additional time to answer my questions on other issues with my vehicle. I will book Matthew again in the future. Thank you Matthew and yourmechanic.com!
Mazda 626 - Axle / CV Shaft Assembly Replacement (Passenger Side Front) - Hampton, Virginia
Matt was timely, professional, very knowledgeable and courteous. I will be booking him again for future services. I’d recommend him to anyone. Thanks again Matt.

Scott

34 years of experience
599 reviews
Scott
34 years of experience
Chevrolet Trailblazer - Axle / CV Shaft Assembly Replacement (Driver Side Front, Passenger Side Front) - Phoenix, Arizona
Scott was great. He was up front and honest about all the work. He did do the repairs I asked for, only for us both to find that the noise it was making was still there . That wasn't his fault, or anyone's really. It needed much more extensive repairs than I was prepared to make, such as a rebuild if a front differential. I ended up trading it in that evening. With that said, I would absolutely use this service again and even invite Scott to service any vehicle in the future. He was honest in a nice way.
Mitsubishi Eclipse - Axle / CV Shaft Assembly Replacement (Driver Side Front) - Phoenix, Arizona
Scott was great. Showed up right on time and completed the work quickly. I will definitely book Scott when I use Your Mechanic.

Kenneth

18 years of experience
499 reviews
Kenneth
18 years of experience
Nissan Quest - Axle / CV Shaft Assembly Replacement (Passenger Side Front) - Torrance, California
Kenneth was extremely friendly and professional. He was very competent and knowledgeable about what he was doing and kept me informed of what he was doing. He went above and beyond to alert me to other conditions that I never would have known about had he not told me. I was very impressed with his honest, ethical attitude. Would definitely recommend him!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE