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Driveline and Axles Rear Axle Assembly Replacement

Need a Rear Axle Assembly Replacement?

A rear axle assembly replacement is a pretty hefty service. The cost will vary depending on the type of car that you have.

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This range covers an average Rear Axle Assembly replacement. Tell us your car to get a guaranteed price from RepairSmith.

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What is a Rear Axle Assembly?

These days, most cars are front-wheel drive, so they don’t have a rear axle assembly. But, if you’re one of those lucky individuals who has a rear-wheel drive car, well, then you also have a rear axle assembly.

You see, the rear axle assembly contains the bits and pieces needed to transfer rotational force to the drive wheels. Inside the unit, you’ll find the differential, the axle shafts, and a collection of bearings. A driveshaft, which runs the length of the vehicle, delivers torque from the engine to the rear axle assembly.

Without a doubt, the differential is the focal point of the rear axle assembly. The differential contains a collection of gears and bearings that direct force to the axle shafts, which, in turn, rotate your car’s wheels and tires.

Also, when your car goes around a corner, the differential allows one rear wheel to turn faster than the other. That stops the car from skidding and sliding – plus, it prevents you from looking like you got your driver’s license from a Crackerjack box.

The rear axle assembly is filled with gear oil to keep all of the internal components happy. Axle seals at both ends of the unit keep the fluid in and debris out. A differential cover gasket may also be used.

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Symptoms of a failing Rear Axle Assembly

Weird Noises

Noises are the most common sign that the rear axle assembly is headed south. The gears and bearings can create a symphony of whining and growling noises. Excessive clearance between the gears can also cause a clunking noise that, in many cases, is most apparent when the car is put into gear.

Fluid leaks

Is there a pool of fluid underneath the rear of your car? Well, my friend, you may have a leaking rear axle seal or gasket.

Shuddering or vibrating car

A failing differential may also cause a shuddering or vibration felt throughout the car. And that’s about as fun as it sounds.

Car doesn’t move

If the rear axle assembly has experienced catastrophic internal failure, power won’t be transferred to the drive wheels. Guess what happens then? That’s right: Your car won’t move.

Get a Quote 1-Year | 12,000-Mile Warranty

How urgent is a Rear Axle Assembly Replacement?

If your rear axle assembly grenades, your car will be undrivable. So, yeah, you could say replacing or repairing the unit is pretty important. If you’re experiencing weird noises, shuddering or fluid leaks from your rear axle assembly, be sure to address the issue before it’s too late.

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Get a Quote 1-Year | 12,000-Mile Warranty

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1-Year | 12,000-Mile Warranty