Apr 4, 2025
A light green Chevrolet SUV

Without differentials, the wheels of your car wouldn’t be able to corner smoothly and safely without losing traction. These two small gearboxes, sitting at the center of each wheel axle, allow the wheels to rotate at differing speeds each time you steer. While extremely durable, differentials occasionally require professional attention. The following warning signs indicate that you should visit your local Chevy dealership for differential service without delay. 

Rough Vibrations

If your differentials are worn or low on fluid, they may struggle to keep up with wheel rotations when you accelerate. This causes excessive vibrations and road noise at higher speeds.

Humming or Howling

Worn-out gears or bearings inside a differential may start emitting humming or howling noises when they come under strain. You’re likely to hear these strange sounds when you accelerate or navigate a corner.

Trouble Steering

If one of your differentials is having serious trouble, it will prevent the wheels from turning at optimal speeds when you corner. This makes it harder to steer precisely and puts you at risk on the road.

Worsening Traction 

As the primary function of differentials is to prevent the wheels from slipping as you turn, a bad differential might cause your tires to momentarily lose traction. If this occurs, pull over immediately and don’t drive until the problem is resolved.

Damaged Tires

As an aging or faulty differential gradually worsens, the tires come under excessive pressure. During your regular tire inspections, you may notice uneven wear patterns or excessively worn-down treads. 

Leaking Fluid

As small gearbox systems, differentials require fluid for lubrication and to protect the internal parts from heat and corrosion. If this fluid ever leaks, the sooner you notice and fix it, the better. Differential fluid is typically a reddish hue; with a leak, you may notice a liquid like this pooling under one of your wheel axles. 

Overheating Differentials

When an aging differential can’t handle the strain, it may overheat. This creates a burning smell, and you might also hear grinding and howling sounds. Overloading a car with too heavy a trailer can sometimes cause even healthy differentials to overheat. 

Schedule Differential Service at Your Chevy Dealership

Most vehicles require the differential fluid to be flushed every 30,000 to 60,000 miles, which is two to four years for most drivers. It’s a good idea to have your differentials professionally examined once a year or more. Our technicians can check the condition of the differential fluid and gears, adding fluid or carrying out repairs if necessary.

Visit Atwater Chevrolet GMC in Aitkin, MN, today to have your differentials maintained and repaired. Our courteous, highly experienced staff prioritize customer care in all that we do. 

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