Archive for the ‘Drive Train’ Category

What Is A Differential And Do You Have One?

Wednesday, August 25th, 2010

With front-wheel drive being so common these days in White Marsh, MD, the differential is just taken care of during a transmission service, so most folks in White Marsh, MD don’t even have to think about it. And rear-wheel drive differentials don’t need to be serviced for years, so it’s understandable that it’s not something on the top of mind for our White Marsh customers. So it’s not uncommon for people to not know they have a differential let alone know that it needs service.

Call Quicklane Tire & Auto Center @ Al Packer White Marsh at (443) 777-5050 for information about differential service, or stop by our White Marsh, MD auto center at 9801 Pulaski Highway 21220.

To better understand what a differential does, think about our local White Marsh high school track. There are lanes marked off on the track. For the longer distance races, the starting lines are staggered. The starting lines for the outside lanes are ahead of the starting lines for the inside lanes. That’s to compensate for the longer length of the outside lanes. Staggering the starting lines means that each runner has the same distance to run.

The differential compensates for the difference in speeds between the inside wheel and the outside wheel in a turn, because they have to travel together through slightly different distances.

It’s a very important function. When you think of it, all the power to get a vehicle moving goes through the differential. Most cars in the White Marsh, MD area weigh between three and six thousand pounds – trucks even more. The power from the engine goes through the transmission and then through the differential to the drive wheels.

That’s a lot of work and requires very heavy duty parts. And those parts need protection. The differential fluid lubricates the gears in the differential and keeps them cool.

The fluid eventually gets dirty and worn down. Some kinds of differentials require special additives that breakdown over time. So manufacturers recommend intervals for replacing your differential fluid.

Your White Marsh, MD technician at Quicklane Tire & Auto Center @ Al Packer White Marsh will drain the used fluid and check it out for metal bits, which could be a sign of excessive wear on the gears. Then he’ll replace the fluid and install the additives if necessary.

Your Quicklane Tire & Auto Center @ Al Packer White Marsh service advisor can look up the manufacturer’s recommended service interval or you can check your owner’s manual. Give us a call at (443) 777-5050 for more information about your differential service.

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Differential Service in White Marsh MD – What You Need To Know

Wednesday, November 11th, 2009

Don’t be embarrassed if you don’t know what a differential is – you will in a moment. That fact is that if you drive a car anywhere in White Marsh MD, you have a differential. Whether your vehicle is front-wheel drive, rear-wheel drive or four-wheel drive, you have a differential. You might even have two or three.

As you might guess from the name, a differential’s job is to compensate for differences. Specifically the differences in wheel speed when turning. For instance, imagine taking a corner near your White Marsh MD home. Your inside wheel has a shorter distance to travel than the outside wheel as you go around the corner. That means that your outside wheel has to turn faster to keep pace with the inside wheel.

The differential allows the wheels to turn at different speeds while still providing power. Without a differential, our tires would scrub and hop along the pavement during turns.

You’ve probably noticed the big bugle in the middle of the rear axle when you’re behind a truck. That’s the differential. Rear-wheel drive vehicles have a differential in back. Most four-wheel drive trucks and SUVs will also have a similar differential on the front axle. Front-wheel drive vehicles’ differential is called a transaxle because it combines the differential and transmission in one unit. An all-wheel drive vehicle will have a differential or transfer case that adjusts for speed differences between the front and rear drive wheels.

It can seem a little complicated. But you can see that all of the engine’s power is routed through your differentials. They’re strong enough to handle the work, but they need to be properly lubricated in order to stay strong. So from time to time, you need to have your differential serviced. The used fluid is drained and replaced with clean fluid. Some differentials also require special additives to be installed.

Get your differential serviced at our White Marsh MD service center:
Quicklane Tire & Auto Center @ Al Packer White Marsh
9801 Pulaski Highway
White Marsh, MD 21220
(443) 777-5050

The rule of thumb for the time and mileage interval for servicing your differential, can vary greatly by vehicle. A front-wheel drive vehicle’s transaxle will need servicing more frequently than the rear differential on a pick-up truck, so check with your White Marsh MD service advisor or your owner’s manual for recommendations.

How and where you drive will have an impact as well. If you drive on dirt roads or through streams around White Marsh MD, you’ll need to service the differential much sooner than if you always stay on the pavement.

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