Back to all

Time for Differential Service at Tuffy TIre & Auto Service Center Orland Park?

April 2, 2023

Hello Orland Park - let's talk differentials. If you have a rear-wheel drive vehicle, your differential is on the back axle. With front-wheel drive cars, the differential is up front. All-wheel drive and 4-wheel drive vehicles have three differentials - front, rear and in the middle. So you see, you've got a differential (or two or three) and it needs service now and then.

What does your vehicle differential do? Well, it compensates for the differences in speed between your outer and inner wheels in a turn. Using the dimensions of a typical car, let's compare the distance the wheels travel from the start of a turn through to the completion of the turn.

The inside wheel travels about 12.6 feet/3.8 meters. How much farther does the outside wheel travel? About 18.8 feet/5.7 meters – over 6 feet/1.9 meters more. This means the outer tire has to rotate 9 times in the same amount of time that the inner tire has to rotate only 6 times - so the outer tire has to spin faster in order to keep up. The differential makes this possible.

The gears in the differential are cooled and lubricated by differential fluid. It's this fluid that needs to be serviced. Small bits of the gears break off and are suspended in the differential fluid. The dirtier the fluid, the faster the gears wear.

So your Tuffy TIre & Auto Service Center Orland Park technician drains the old fluid out and replaces it with fresh fluid. Some differentials also need a special additive that is put in at this time.

So when should you have your vehicle differential serviced? Intervals vary from vehicle to vehicle – and may be as short as 15,000 miles/24,000 km – so check your vehicle owner's manual or ask us at Tuffy TIre & Auto Service Center Orland Park. If you frequently drive with heavy loads, tow a trailer or drive in hot Illinois conditions, you may need to change differential fluid more often. Servicing your differential on schedule at Tuffy TIre & Auto Service Center Orland Park can save a pricey replacement down the road.

Give us a call.

Tuffy TIre & Auto Service Center Orland Park
7900 W. 159th St.
Orland Park, Illinois 60462
708-444-2966

More articles from Tuffy Orland Park

Wasteful Thinking

May 26, 2024

With the weather getting colder, you might be tempted to start your vehicle up, let it idle for 15 or 20 minutes and then get in the nice, cozy cabin. Some vehicles offer remote starting that let you do that from the comfort of your home or apartment. But is letting your vehicle idle like that ... More

Oil's Well That Ends Well (Oil Change Grades and Weight)

May 19, 2024

Changing your oil regularly is one of the most important things you can do to keep your vehicle running well. And knowing the right type of oil to use is also very important. Engine oil is classified by weight, but it doesn't refer to how much the oil would weigh if you put it on a scale. It r... More

Service to Improve Fuel Economy

May 12, 2024

The price of gas in Illinois has got people in Orland Park talking. It seems that Orland Park folks who need a bigger vehicle to carry family and gear, or provide four wheel drive, are hit especially hard. That is why we thought it would be good to review some things that anyone can do to improv... More