Back to all

Differential Service at Tuffy Rockford: Viva la Difference

January 3, 2021

Every vehicle on Illinois roads has a differential, and it is important to the proper operation of the vehicle.  But most Loves Park residents don't have a clue what it is.

The differential compensates for differing wheel speeds. For example, when you turn, the inside tire on the turn travels a much shorter distance than the outside wheel. So the inside wheel of the vehicle must move at a slower speed than the outside wheel. Without a differential, the wheels would hop and scrape while turning.

Have you ever seen the large bulge in the middle of the rear axle of a truck? That's the differential. In a rear-wheel drive vehicle, the differential is located on the back axle. Four-wheel drive vehicles and SUV's have differentials on both the front and the rear axle.

You might expect that the differential is located on the front axle of a front-wheel drive vehicle. You'd be right. But the differential is called a transaxle on a front-wheel drive vehicle because its location allows it to be combined with the transmission.

In an all-wheel drive vehicle, an additional differential or transfer case is located between the front and rear axles. Differentials are strong: They have to be because of the job they do. But those tough parts need proper lubrication. You don't want your differential to seize up. That results in damage to your vehicle.

So you need to have your vehicle differential serviced regularly. It's not a complicated job. At Tuffy Rockford in Loves Park, we've been servicing differentials for years. The used lubricating fluid is simply drained and then replaced. Some vehicles require specific additives in the differential fluid; your Loves Park service center will ensure you are getting what your vehicle needs.

The intervals in time or mileage for servicing your differential vary greatly from vehicle to vehicle. Check with your owner's manual or Tuffy Rockford service advisor to find out how often your vehicle differential needs to be serviced.

Tuffy Rockford
6574 E. Riverside
Loves Park, Illinois 61111
815.639.1239

More articles from Tuffy Rockford

Out of Joint (CV Joint and Boot Replacement)

January 19, 2025

If you have a front-wheel-drive vehicle, it has components called CV joints which enable you to turn your wheels smoothly. The CV stands for constant velocity. In essence, its a set of gears that connect a shaft that allows power from the transmission to be sent to the wheels. When you turn the ... More

Have a Ball! Know your Ball Joints (Ball Joints)

January 12, 2025

We all have joints in our own skeletal system, but did you know your vehicle has some joints of its own? One of the most important is called a ball joint. One of the interesting things is that it's somewhat similar to the ball and socket joints we have in our hips and shoulders. A ball joint all... More

Timing is Everything (Timing Cover Replacement)

January 5, 2025

Theres an important part in your vehicle that shields your timing belt, timing chain or cam belt from the debris and gunk that can be kicked up from the road. Its called the timing cover. Its important because the timing belt or chain is what coordinates parts of your engine called the camshaft... More