Pinion Seal Replacement at your home or office.

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Pinion Seal Replacement Service

What is the Pinion Seal all about?

In vehicles that have the rear wheels as drive wheels, drive shafts, differentials, and transfer cases are used to transmit power from the engine and transmission to the wheels. In a front-wheel drive setup, CV axles join the transmission directly. However, in rear, all and four-wheel drive setups, that’s not the case. Depending on the make and model you own, you may have a single driveshaft and differential, a front and rear differential (in the case of all-wheel drive) or some other setup.

In these systems, driveshafts are used to transmit movement/power from the transmission to one or more differentials. While they’re all different, they do have a few similarities. Each differential will have a pinion shaft – a short shaft that attaches to the pinion gear inside the differential and terminates in a flange. The pinion shaft attaches to the driveshaft.

Each pinion shaft will have a pinion seal, which is used to ensure that fluid does not leak out of the differential past the pinion shaft. Depending on the setup, you may have a rear pinion shaft, or a front and rear pinion shaft.

Keep in mind:

  • The rubber pinion seal will wear and eventually need to be replaced.
  • Pinion leaks should be inspected at each service interval.
  • Low fluid in the differential can damage gears.

How it's done:

  • The vehicle is lifted and supported on jack stands and the drive shaft is removed
  • The defective pinion seal is removed
  • The new pinion seal is installed
  • The drive shaft is installed and the vehicle is removed from jack stands
  • The vehicle is started and checked for steering operation

Our recommendation:

Whether you have a four-wheel, rear-wheel or all-wheel drive vehicle, it’s vital that you keep your differential in good working order, and that means maintaining the right fluid level. As the fluid level drops, gears wear and friction increases. We highly recommend having any pinion leaks inspected by our expert mechanics as soon as possible.

What common symptoms indicate you may need to replace the Pinion Seal?

  • Fluid leaking at the pinion shaft
  • Low fluid in the differential
  • Differential whining during operation (a sign of low fluid and/or damage)

How important is this service?

Without an operational differential, your vehicle can’t be driven; therefore, it’s vital that you maintain the right fluid level. Any leak can quickly drop the fluid to unsafe levels, and serious pinion leaks can cause problems very quickly. Have your vehicle serviced by our expert mechanics, who will keep an eye on your entire vehicle during regular maintenance and diagnose any differential fluid leaks.

Fast and easy Pinion Seal Replacement service at your home or office.


Recent Pinion Seal Replacement reviews

Excellent Rating


YourMechanic Pinion Seal Replacement Service

Average Rating

4.5/5

Number of Reviews

31

Rating Summary
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1
28
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Torrieanto

Torrieanto

9 years of experience
276 reviews
Torrieanto
9 years of experience
Trey was right on time. Trey was very knowledgeable and I can believe all claims in his profile credentials are true. He completed the job with no issues at all. Hope to retain his talent in the future.
2008 FORD F-150 - PINION SEAL REPLACEMENT (REAR) - PALM HARBOR, FLORIDA
Miguel

Miguel

32 years of experience
181 reviews
Miguel
32 years of experience
Overall experience was good. He was running a little late but managed to get job done in a timely manner.
2000 GMC SIERRA 1500 - PINION SEAL REPLACEMENT (REAR) - JACKSONVILLE, FLORIDA
Chris

Chris

13 years of experience
397 reviews
Chris
13 years of experience
Chris was prompt - he's close to where I live. He knew what he was doing and assured me he had enough experience with pinion seal replacements - mostly Chrysler. Basic job is similar on most rwd vehicles anyway. He was prepared, ready and got done quickly and systematically. Also had friendly dogs with him, a very healthy Pit and maybe a Yorkie. I will be sure to request should I need more services in the future. The dogs can come, too.
2007 FORD MUSTANG - PINION SEAL REPLACEMENT (REAR) - SOUTH SAN FRANCISCO, CALIFORNIA
John

John

17 years of experience
310 reviews
John
17 years of experience
Very knowledgeable. Friendly. And honest. Will be requesting him for future
2004 FORD MUSTANG - PINION SEAL REPLACEMENT (REAR) - APOPKA, FLORIDA

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com