A differential is part of the front and/or rear axle assembly. … The differential fluid or oil in transaxles and axles should be changed as part of a preventive maintenance schedule. It’s part of your transmission service. Some four wheel drive vehicles require changing the axle oil every 30k miles.
What are the symptoms of a bad rear differential?
This is why it is important to pay attention to signs of differential trouble, including the following.
- Tire Damages. If you notice strange damages on the sidewall and outer tread of your vehicle’s tires, it may be caused by failing differential components. …
- Hard to Handle. …
- Vibrations. …
- Gears Grinding. …
- Whining Sounds.
How much does it cost to replace a rear differential?
A typical rear differential repair costs anywhere between $200 and $400. These typical repairs would include your bearing, seals, and fluid changes. Of course, when a gear change is required, that’s when things get pricey. $1,500 is just the minimum you can expect to pay for new gears.
What is transmission differential?
Simply put, a differential is a system that transmits an engine’s torque to the wheels. The differential takes the power from the engine and splits it, allowing the wheels to spin at different speeds.
Can you drive with a broken rear differential?
They’re what transfers power to the wheels from the transmission (in a front-wheel drive setup) or the differential (in a rear-wheel drive system). If one of your axles is broken, do not drive the car. It’s not safe. … If your axles are failing, you’ll still technically be able to drive your car.
What causes a differential to go bad?
However, they can go bad overtime, due to normal wear and tear or if you regularly take the vehicle off-roading. If they wear out and you don’t address the issue, the wheels can lock up. You may need a new rear differential if you hear noises, there’s looseness, or your car has been damaged in an accident.
How do you know if your rear differential needs fluid?
5 SIGNS OF A DIFFERENTIAL PROBLEM
- Service Past Due. Like all components of your vehicle, your differential needs periodic service. …
- Leaking Differential Oil. To the naked eye, differential/gear oil will look similar to common engine oil if it is leaking out the bottom of the vehicle. …
- Strange Noises. …
- Vibrations. …
- Unusual Smells.
How long does it take to fix a rear differential?
The bearings in the rear diff include the pinion bearing and the side bearing. Both can deteriorate or pit over time, which will lead to rear diff noise. If you need to replace one of the bearings, expect the process to take between three and five hours for a trained mechanic to complete.
What happens if you don’t change rear differential fluid?
Most differentials need a fluid change at about 50,000 miles. If left too long or if the fluid starts to run low, the differential will become noisy and can eventually fail. If that happens, the gears can seize, locking up the rear wheels and potentially causing a lot of damage or even an accident.
How hard is it to rebuild a rear differential?
A complete rear differential replacement includes replacing the housing, gears, bearings, and seals. The average time it takes a certified mechanic to perform a differential rebuild at a shop is usually three to five hours. A rebuild on a commercial vehicle by someone without prior experience could take much longer.
Does the differential affect the transmission?
The differential has one primary function: to provide the right amount of power to your tires so your vehicle can move at varying speeds. The differential ensures the right amount of speed is transmitted to your tires via the engine and transmission and allows your wheels to rotate as acceleration and power changes.
What is the difference between differential and transmission?
The transmission or gearbox adapts the engine output to suitable speed and torque to be transferred to the wheels. The differential channels that power to the two wheels on the same axle at an appropriate ratio.
Why differential mount behind the transmission?
The primary purpose behind any motor mount is to keep vibrations from the engine from snaking into the chassis and rattling your eyeballs or vibrating bolts loose. Most motor mounts consist of a rubber spacer sandwiched between a pair of metal plates.
What happens if a differential goes out?
Another symptom you could experience while the differential is giving out is that the car can start to shake or vibrate. Depending on the severity, vibration can become more noticeable as you reach higher speeds or if it’s very severe, you might experience heavy vibrations under acceleration from a stop.
Can you drive without differential fluid?
Generally speaking, your Car ,just can’t run out of differential fluid . For that to happen you’ll have to go on driving for a long long time without any service of the vehicle ,which I’m sure no sensible motorist would do. … No burning smell, but the fluid is dark.