Differentials & Rear Ends

differentialWhen you take a corner in your car, the outside wheels have a slightly longer distance to go than the inside wheels. That means that the outside wheels have to turn a bit faster than the inside. This is called the differential.

The differential allows the drive wheels to rotate at different speeds in turns without the wheel binding or hopping. If you have a rear-wheel drive vehicle, the differential is on the rear axle.

If you have a front-wheel drive vehicle, the differential function is handled by your transaxle. Of course, all-wheel drive vehicles have differentials on both axles. They also have a center differential or a transfer case between the front and rear axles to compensate for speed differences between the front and rear.

Because all the power of the engine is transferred through the various differentials, you can imagine that they are very strong and are built last a long time. That’s why it’s important to keep your differential properly lubricated. Differential fluid cools and protects the gears.

Northboro Car Care will check differential fluid level and top it off if necessary. With low fluid, the differential will run too hot and wear prematurely. Ask us when it’s recommended to change your differential fluid. Fresh fluid will extend the life of your differential. We will also inspect the u-joints which connect your drive shaft to the differential and may recommend service. Some u-joints can be lubricated as part of a routine lube, oil and filter change as well.

Differentials eventually wear out and need to be replaced. You might notice a strange noise from you axle area as one of the first warning signs. When the differential shows signs of failing, it’s important to repair it. If you leave it too long and it freezes up when you’re driving you could lose control of your vehicle and other parts like the axle, driveshaft and transmission could be damaged.

Call Northboro Car Care to schedule your next service today at (508) 393-4200.

Paul D'Anello
Paul D'Anello
08:57 20 Oct 16
Tony quickly diagnosed a repair on my car that all the big box repair shops (NTB, Sears, Meineke, etc.) failed to do and wanted to charge me for guesswork and unnecessary repairs. His quality workmanship is far superior compared to the inexperienced labor you get at those retailers. And the best part is his hourly labor rate is 1/2 of what anyone else charges. For quality honest work, look no further!
Annmarie Vermes
Annmarie Vermes
21:33 28 Oct 15
The Northboro Car Care crew: Tony, Francois, and George are experienced, honest, reliable, automotive engineers. They are not your average mechanics, they are highly experienced within all makes and models. I have taken many cars to them where dealerships had advised expensive repairs, and the team has offered quality, cost effective alternatives. The team is extremely responsive, and makes every effort to get the job done in a quick and timely manner. I have confidently recommended the team to co-workers and family members who have been so pleased with their services and quality of work that they too Northboro Car Care life-long partners.
Michele chapdelaine
Michele chapdelaine
14:12 19 Dec 15
Tony and his team always provide professional, high quality service. Cars are always done on time and running perfectly. He is honest and stands by his work. Not to mention very fair pricing. Thanks Tony!
Lori G
Lori G
01:56 29 Oct 15
I have been taking my cars to Northboro Car Care for 9 years and I wouldn't think of going anywhere else. I live in CT and commute to work everyday so I need my car and I can always count on Tony, Francois and George to do a great job!! They are honest and fair and they treat you like family!
Chuck Lundberg
Chuck Lundberg
15:55 16 Oct 15
Honest Professional Service. Top notch skilled mechanics who explain what your car needs in a language anyone can understand. Work done quickly and at a fair price.
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