A wrong oil type will not lubricate the spider gears, ring and pinion, and the differential while driving. The rear differential contains a set of gears that allow it to rotate at a different speed than the driveshaft. A driver should consult a certified mechanic to deal with a bad rear differential and prevent further damage to the vehicles driving systems. A rear differential service consists of removing the rear differential cover, cleaning any old fluid from inside the differential case, resealing the cover, and adding clean fluid. The procedure for removing a rear drive shaft from your rear wheel drive vehicle varies slightly from car to car, but uses common steps for most vehicles. Rear Differential Noises>How to Diagnose and Repair Rear Differential Noises. if one of the gears strips, it just wont go anywhere or just drive one wheel, depending on what stripped. If your differential has been stiff or failing for a while, your tires will begin to wear down much more quickly than normal. When rear differentials fail, it can cause vibration, noises, and fluid leaks. In a worst-case scenario, the differential could experience catastrophic failure and lock up, potentially causing damage to. Grinding gears is another significant sign that your differential is failing and that the gears are wearing themselves out. Vibration and oil leaking from the rear differential seal may also be signs of a failing differential. Understanding The 4WD In Your Ford – Blue Oval …. What happens if a differential breaks? Depending on the vehicle and the issue the rear differential has, what happens when the rear differential goes out while driving. This signal might be flashing red in color instead of solid orange/amber. Loose Lug Nut One of your wheels could be loose. A 4×2 wheel drive refers to the setup of a driveline in a vehicle, typically in light trucks. On average, you can expect to pay between $200 – $400 for a lighter repair job on your rear differential. Yes, driving with a bad differential is feasible but not recommended. What does rear differential noise sound like?. What happens when a wheel bearing goes out while driving? A bad bearing can stop your wheel from moving, and this can happen while you are driving. The outside tire will have less traction but more energy to make a wider, faster turn than the inner tire. Typically, when the gears wear out -- or the bearings fail -- the. At the very least, before a wheel falls off, a failed wheel bearing can/will cause significant damage to your vehicle, so it’s very important to keep an eye on these and keep them maintained. Due to this process, the length of the prop shaft varies. If the vibration is on a massive scale then there might be parts broken inside which need immediate attention. Yes, driving with a bad differential is feasible but not recommended. The main symptom of a bad differential is noise. If the rear differential leak goes unattended long enough or becomes severe, you might hear clicking, clunking, howling, or whining noises. More importantly, a compromised differential can negatively impact your safety when you’re behind the wheel by making it difficult to turn. What happens when your differential goes out while driving? When a cars differential fails, odd noises will be heard. Then all of a sudden a big whapam followed by a mild grinding noise emits from the rear axles. After a rear differential fluid change, most vehicles will go 20,000 to 40,000 miles before it’s due again. First, you need to make sure there are no leaks around the rear Differential. More importantly, a compromised differential can negatively impact your safety when you’re behind the wheel by making it difficult to turn. If your differential lock is too low, your wheels may spin and lose traction; too high, and your car may suffer from understeer when traveling around corners. A failing differential [both front and rear] will make a whirring noise, whining noise, howling noise,. Symptoms of a Damaged Differential. If the rear axle hits something while it’s moving upwards it will fling your vehicle into whatever it’s facing – usually another lane of an oncoming car or perhaps even off of a bridge or into oncoming traffic if that happens to be where you end up rolling over. As the damage gets worse, drivers notice vibrations, a loss of speed on the road and, finally, the vehicle does not move even t. While driving 55 mph, a loud humming noise was coming from the rear of the vehicle. Sometimes itll go away when you take your foot off the gas. The only way they can keep rotating quickly is if they remain weighted down and balanced exactly right. What happens after a rear differential goes out depends entirely upon the severity of the issue. If your wheel bearing goes out while you’re on the road, it’s not advisable to keep driving. If it is a wheel bearing in the rear, it may take anywhere from 15 to 45 minutes and if the hubs and wheel bearing is permanently bolted to the car it can take 20 minutes to an hour. Occasionally, the lug nuts that attach the wheels. We would like to show you a description here but the site won’t allow us. The first thing you need to do is ensure that the rear differential Differential. A failing differential [both front and rear] will make a whirring noise, whining noise, howling noise, Differential failure due to lack of lubrication:. What happens when a wheel bearing goes out while driving? A bad bearing can stop your wheel from moving, and this can happen while you are driving. When it goes bad, the car will lose traction and have difficulty turning corners. Jeep Cherokee Differential Unit Problems. If the universal joints of your differentials get too worn out, the drive shaft will start to vibrate. Likewise, there is no prior indicators of when the rear wheels will seize up. A standard diff has the incoming pinion, the ring gear, 4 spider gears and not much else. Even though your rear differential looks all solid and well sealed up, it has a couple of gaskets, seals, and joints that could come loose over time. What happens if the rear differential goes out while driving? Well, it will cause complications. What causes rear differential whine?. In the case of chipped or broken gear teeth, there may a vibration or skip in power. The differential is essentially a complex box of gears that allows the wheels to turn at different speeds when you take turns. They checked the differential fluid level and noted excessive amount of metal present in diff. Took the car for service and the mechanic found that the rear differential is leaking fluid all over. Symptoms of a bad differential can include one wheel spinning at high speeds while driving normally, vibrations in the transmission or driveline, and/or excessive oil consumption. Youll hear something that sounds like a deep whistling sound that goes up and down in pitch as you go faster. If you don’t get these components serviced, it can lead to further damage to other drivetrain components. The rear drive shaft runs from the rear of the transmission or transfer case of your. The rear end vibration gets severe especially when negotiating a turn because it is when any malfunctioning limited slip differential would perform worst. Intense Vibrations from Underneath the Vehicle One of the first symptoms of a problem with the driveshaft is vibrations coming from underneath the vehicle. When the differential doesn’t perform well, it creates metal-on-metal friction that wears down surfaces. Frayed or worn gears slip from the gear teeth while linking with other gear sets. When the universal differential joints go out or wear while driving, vibrations will be felt from the drive shaft. When the rear wheels hit uneven surfaces, the rear axles move downward and upward, expand and compress in suspension spring. When it goes bad, the car will lose traction and have difficulty turning corners. The differential gasket, pinion seals, and side seals are some of the seals that can leak differential fluid if they go bad. Fluid Leaks: The rear differential and universal joints have seals and use lubricants to work properly. Driving in water that is hub deep or higher may allow water into the wheel bearing. What Does a Drive Pulley Do?. Differential Unit Problems. The National Highway Traffic Safety Administration has opened a preliminary investigation into select Dodge Ram 1500 pickups over a concern that the rear differential may fail, causing the. Rear wheel drive is better than front wheel drive. It connects to the differential axle which connects to the wheels. What happens after a rear differential goes out depends entirely upon the severity of the issue. Short shifting, revving, wheeling out, and basically taking out your frustrations on your truck. The differential is a component in all cars and is designed to compensate for the difference in distance the inner wheels and outer wheels travel as the car goes around a corner. Now a differential is not there to control only the speed, it also plays an equal role in making hard turns and keeping the torque balanced. Not only will you hear a chattering sound if this happens, but you’ll also feel vibrations in the. You will hear a loud bang and lots of grinding noises, but on top of that, it could get you in a hazardous situation because the vehicles handling will be negatively affected. What happens if rear differential goes out while driving? Damage To The Tire The differential allows the tires to spin at different rates during cornering, and when it fails, the gears grind, causing the tires to turn at the same rate, which wears out the tires. Can you drive a 4×4 without front CV axles? – Sage. A bad wheel bearing can cause the brake rotor to wobble, which shoves the caliper piston back into its bore so that when you apply the brakes, you have unexpected pedal travel as a result – making it harder to stop or causing the vehicle to pull unexpectedly to one side – never a good thing in traffic. Rear Differential Replacement Cost. When it goes. Typically, when the gears wear out — or the bearings fail — the differential will start to howl. See more Reply Save Like bren · #5 · Dec 13, 2002. Yes, a bad differential can cause annoying vibrations while you are driving on the road. Now driving with a bad rear differential is more. Took the car for service and the mechanic found that the rear differential is leaking fluid all over. The on-board computer monitors for any sign of rear drive wheel slip (loss of traction) If loss of traction is detected, the center differential is told to send a share of the engine s torque to the front drive wheels. This has been a known problem since 2013 and Ford continues to milk profits off it to this day. How to Remove a Rear Drive Shaft. The basic symptom of a bad differential is when one wheel spins at high speeds while you are driving normally. It can also make it dangerous to take turns going fast. Rear end vibration is one of the often-reported symptoms in a rear-wheel drive which indicates that the differential clutch pack is going bad. Symptoms of a bad rear differential Excessive Noise:. As your car corners, it will be spinning one tire faster than the other or dragging a tire across the asphalt. What happens if the rear differential goes out while driving? If your differential goes out while driving, its bad news. Rear Differential Problems. Can You Drive with a Bad Rear & Front Differential?. When the universal differential joints go out or wear while driving. Actually, the driver school just accelerated a bad bearing issue but I was able to drive 300 miles home on it. What happens when your rear differential goes out? The first noticeable thing is the strange noise from the differential. Short shifting, revving, wheeling out, and basically taking out your frustrations on your truck. Signs of a Bad Rear Differential. The noise will increase or decrease as you accelerate or decelerate the vehicle. Here is a list of what can cause a rear differential to go bad: Not driving adequately in the break-in period: When a vehicle is brand new, there’s a period of 3,000-5,000 miles where Not changing the first gear. Why Is My Rear Differential Leaking?. The most common cause of a bad differential is lack of oil, which could result in grinding at high speed, cause the carrier to break, or in most cases, block the rear wheels. The Rear Diff Locker This is another culprit that could result in a flashing 4WD locker signal on the dashboard. Since drive shafts rotate quickly, they’re able to move the rear wheels of your vehicle. Differential gears on vehicles turn the angle of drive energy ninety degrees to rotate the wheels. In 4WD mode, each wheel receives 25 percent of the available engine torque. What Happens If Rear Differential Goes Out While Driving? The severity of the complications if the rear differential goes out while driving with a bad pinion bearing will depend on the problem and the vehicle. As with many other mechanical components, a faulty or malfunctioning rear differential may show signals to alert the driver. The vehicle was taken to an independent mechanic who diagnosed that the rear differential failed and needed to be replaced. What Happens when a Rear Differential Goes out While Driving? There are noticeable symptoms of a rear differential that’s in poor condition. What happens when your differential goes out? Typically, the differential will start giving strange noises when it goes out, or when the bearing fails. Youll hear something that sounds like a deep whistling sound that goes up and down in pitch as you go faster and slower. Since drive shafts rotate quickly, they’re able to move the rear wheels of your vehicle. Yes, driving with a bad differential is feasible but not recommended. This is caused by broken or worn out teeth on the. A mild vibration usually means the differential lacks lubrication, needs a fluid change, and has few minor repairs. Common Problems With Differentials and What to Do About Them>Common Problems With Differentials and What to Do About Them. If rear differential replacement is your only option, you can seek out a completed used assembly. This happens with the teeth on the gears of your rear differential break. Because the differential is at the rear and under the car, it gets none of the star treatment that the engine up front does. If the driveshaft universal joint (U-joint) or. Whether rear or front, any failing differential will produce whining, humming, whining, and howling Differential. This happens with the teeth on the gears of your rear differential break. What Happens If Rear Differential Goes Out While DrivingIt transmits the power source energy through each component to the re. When it goes out, the gears grind, causing the tires to rotate at the same speed. However, once they do go bad – excessive mechanical wear between gears (due to. What happens if rear differential goes out while driving? The severity of the complications if the rear differential goes out while driving with a bad pinion bearing will. What happens if rear differential goes out while driving? Depending on the vehicle and the issue the rear differential has, what happens when the rear differential goes out while driving varies in severity. If you notice fresh oil, you have a pinion seal leak. The differential allows wheels on the same axle to rotate at different speeds. 5 Symptoms of a Bad Front or Rear Differential (and Repair. A good used part with a decent warranty will be around $1,500 to $2,000 installed. Going much faster than that can damage your vehicle. What Are The Differential Clutch Pack Symptoms? Everything …. After performing a service, most cars will go for about 20,000 to 40,000 miles before needing another service. A failing differential [both front and rear] will make a whirring noise, whining noise, howling noise, and humming noise. Is a differential flush necessary?. Without it, youd be dragging your outside wheel along the pavement whenever you turn. When your car makes a turn, the differential will give the inside tire more energy because it has more traction than the outside tire. You’ll hear something that sounds like a deep whistling sound that goes up and down in pitch. The optimal differential tuning. When the drive shaft begins to have malfunctioning issues, then your driving ability will be impaired. The rear end is your mechanics shorthand for the differential. How long does it take to change rear differential fluid?. This makes the car very dangerous to drive because the wheels can lock anytime. The first major sign of a damaged differential is difficulty in vehicle handling. For example, broken gear teeth or chipped teeth can cause a skip. I blew a diff at a driver school. 5 Symptoms of a Bad Drive Shaft (And Replacement Cost). What happens if the rear differential goes out while driving? Well, it will cause complications. Multiple broken teeth will likely cause thunks and. There’s really no telling how long you can safely drive your vehicle in this state. After a rear differential fluid change, most vehicles will go 20,000 to 40,000 miles before it’s due again. This happens with the teeth on the gears of your rear differential break. Because the differential is at the rear and under the car, it gets none of the star treatment that the engine up front does. This changes the angle between the propeller shaft and the transmission output shaft. Rear Differential Replacement Cost. When you are driving with your locking differentials engaged, it is a good idea to not exceed 25mph. What happens if rear differential goes out while driving. Symptoms of a Bad or Failing Driveshaft. In a worst-case scenario, the differential could experience catastrophic failure and lock up, potentially causing damage to additional driveline components. The differential allows wheels on the same axle to rotate at different speeds. When a vehicle makes a humming or whirring noise, it is usually caused by a damaged or worn-out bearing in the axle or. com%2fsymptoms-of-a-bad-rear-differential%2f/RK=2/RS=xGvLOoFWRYVX9JuHqBcTmYvPGpM- referrerpolicy=origin target=_blank>See full list on rxmechanic. Typically, when the gears wear out -- or the bearings fail -- the differential will start to howl. The vibrations will get even worse if there is a differential fluid leak. Replacing Your Rear Car Window. In a worst-case scenario, the differential could experience catastrophic failure and lock up, potentially causing damage to additional driveline components. Rear wheel sidewall or outside tire degradation is a strong indicator that your. The differential allows this to happen. In all-wheel drive, the car’s computer sends more power to the tires that are receiving more traction, while in four-wheel drive, the power is split evenly between the tires. What happens if rear differential goes out while driving? The severity of the complications if the rear differential goes out while driving with a bad pinion bearing will depend on the problem and the vehicle. More importantly, a compromised differential can negatively impact your safety when you’re behind the wheel by making it difficult to turn. Drive pulleys are connected to power sources that make them turn as well as being attached to a belt, chain or cable to goes to something that needs to spin or be driven. What Happens if a Rear Differential Goes Out While Driving? The answer depends on what happens when the failure occurs. Worn out u-joints, couplers or carrier bearings can cause the driveshaft to vibrate. Now, based on the issue and your truck model, it may cause vibration, noise, or slow acceleration. What happens if rear differential goes out while driving? Damage To The Tire The differential allows the tires to spin at different rates during cornering, and when it fails, the gears grind, causing the tires to turn at the same rate, which wears out the tires. Either it locks up or something breaks and the driveshaft no longer does anything. Here a few things to look for if you suspect somethings off: Worn carrier bearings. This results in the tires wearing out. What happens when your differential goes out? Typically, the differential will start giving strange noises when it goes out, or when the bearing fails. The most common cause of a bad differential is lack of oil, which could result in grinding at high speed, cause the carrier to break, or in most cases, block the rear wheels. Water in the rear differential. The more gear teeth that are worn or damaged the more severe the noises, vibrations and skip in power will be. You hear all kinds of noise (whirring. Clutch problems: Both automatic and manual transmissions are designed with clutch systems. No fluid has leaked out and no damage inside the differential. As the vehicle slowed down, accelerated, or around a bend, the noises gradually changed. What are the symptoms of a bad differential? Excessive noise. Symptoms of a bad differential can include one wheel spinning at high speeds while driving normally, vibrations in the transmission or driveline, and/or excessive oil consumption. Can wheel bearings last 200000 miles?. Now driving with a bad rear differential is more. The lack of differential fluid in rear differential carrier assembly can lead to a catastrophic failures. November 2, 2022 by Carolina. Symptoms of a Bad Differential: (4 Causes & Easy Fixes). What happens if rear differential goes out while driving? The severity of the complications if the rear differential goes out while driving with a bad pinion bearing will depend on the problem and the vehicle. Typically, when the gears wear out -- or the bearings fail -- the differential will start to howl. The resulting heat weakens gears and can cause component failure and transmission problems. What happens if rear differential goes out while driving? Damage To The Tire The differential allows the tires to spin at different rates during cornering, and when it fails, the gears grind, causing the tires to turn at the same rate, which wears out the tires. Check out these common problems with differentials, along with the serious consequences that can result if theyre left unaddressed. It often happens when you have a worn-out differential seal or a cracked housing which could cause oil leaks. What happens if the rear differential goes out while driving? If your differential goes out while driving, it’s bad news. The vehicle was not repaired and was not taken to a dealer. What Happens If Rear Differential Goes Out While Driving. Some may say that you can drive for up to a thousand miles with a failed wheel bearing—but the thing is, this is an arbitrary claim. The rear differential contains a set of gears that allow it to rotate at a different speed than the driveshaft. Rear end vibration is one of the often-reported symptoms in a rear-wheel drive which indicates that the differential clutch pack is going bad. Driving Through Deep Water While the seal is there to act as a barrier against dirt, debris, and water, it cannot withstand large quantities of water putting pressure on it. Leaking pinion seal One of the biggest signs your pinion seal is failing is it is leaking. What Happens If Rear Differential Goes Out While Driving. On top of that, you cant drive a car. That’s because it typically requires more cleanup, it’s made from different glass and it may be hooked to a defroster. Its normal for the engines noises to go louder or quieter as you increase or decrease the vehicles speed. There are two ultimate modes of failure for a diff. Ford Escape Differential Unit Problems. What happens when your differential goes out while driving? If a car differential goes out while driving, it will produce strange sounds. For example, a differential carrier bearing for a Toyota Camry costs just $38 each. How & Why Rear Differentials Go Bad A stock differential failure is rare, especially if it is being maintained properly. Frequency is too fast to be U-Joints. However, this does not include labor cost which is usually around $80 – $120 for a rear differential repair job. But if lubrication in the car differential fails, you wont be. The complete failure of the rear differential assembly would result in internal gears seizing up and locking of the rear wheels. That will grind down the tread quickly. I dont think the Rear Diff Lock light on the dash ever turned solid red, but it did flash red for a second. If your differential goes out while driving, the most likely scenario is that your vehicle will lose traction and you will not be able to move forward. The most obvious sign that a rear end differential is going bad are loud noises when driving or turning corners. What happens if the rear differential goes out while driving? Well, it will cause complications. It indicates that the vehicle has four tires, with two of them at most providing power. Symptoms of a Bad Rear Differential: Causes and Fixes. To Repair A Front Differential. Shudder/shake from rear end at very slow speeds, typically. It is a constant shake from the rear end or a shudder. Rear differentials are there to transfer engine power to the front axle and wheels. a Bad Rear & Front Differential?. What Happens if a Rear Differential Goes Out While Driving? The answer depends on what happens when the failure occurs. A rear differential service typically involves removing the cover, cleaning the remaining fluid inside, resealing the cover, and adding new lubrication fluids inside. What happens if rear differential goes out while driving? The severity of the complications if the rear differential goes out while driving with a bad pinion bearing will depend on the problem and the vehicle. As mentioned before the differential is responsible for optimizing wheel turns around corners. The car also spun the wheels or something when it did a right hand turn off a main road onto another. A leak or cracked seal may cause vibrations and failure of rear differential gears. In two-wheel-drive mode, the system delivers all the engine torque to the rear differential, so each rear wheel receives 50 percent of the available engine torque. Depending on which teeth are damaged, you may experience constant vibrations or vibrations when turning. Not only will you hear a chattering sound if this happens, but you’ll also feel vibrations in the steering wheel. How Fast Can You Drive with Diff Locks On?. The rear differential contains a set of gears that allow it to rotate at a different speed than the driveshaft. Due to the broken gears and teeth of the rear differential, the problem can be much more serious. This happens when you are in 4WD 4Lo (Low range) mode and you want to engage the front or rear diff locker. The vibrations will get even worse if there is a differential fluid leak. Rear Differential Replacement Cost. Depending on the vehicle and the issue the rear differential has, what happens when the rear differential goes out while driving varies in severity. When a rear differential fails, it can cause vibration, noise and fluid leaks that impact a vehicle’s acceleration and driveability. This will contaminate the lubricant, causing potential wheel bearing failure. This happens when one of the mechanical seals in the differential has worn out or failed. Q: What happens when your rear differential goes out? Typically, the differential will start giving strange noises when it goes out , or when the bearing fails. A driver should consult a certified mechanic to deal with a bad rear differential and prevent further damage to the vehicle’s driving systems. Driving in water that is hub deep or higher may allow water into the wheel bearing. More importantly, a compromised differential can negatively impact your safety when you’re behind the wheel by making it difficult to turn. There will be whirring, growling, howling, and whining noises that increase or reduce when accelerating or decelerating the vehicle. Front-wheel bearings can take from 30 minutes to 1 hour and 30 minutes, all depending on your mechanic. It shakes the whole trucknot violently, but notablylike running over some rumble strips in the road at lower speeds. Typically, when the gears wear out — or the bearings fail — the differential will start to howl. When your vehicle goes around a corner the wheel on the outside has to travel faster than the wheel on the inside. These gears are housed inside a casing at the center of the rear axle, and you must remove the case plate to replace the fluid. The faster you’re driving, the louder the noise will become and the more vibrations you feel. Here is a list of what can cause a rear differential to go bad: Not driving adequately in the break-in period: When a vehicle is brand. 00:00 00:00 Brought to you by Leaf Group Noise in Gear from an Idle. What causes rear differential whine?. Ultimately, it can impact your vehicles handling and acceleration. The drive shaft will vibrate if the universal differential joints fail or wear out during driving. After a rear differential fluid change, most vehicles will. Thats why when youre diagnosing a rear differential noise, you should have at least two people in the car to listen from where it is coming. Excessive Vibrations: Excessive vibrations from the back of your vehicle might indicate that your differential is failing. For example, if one wheel in front of your car spins continually when you take off from a stop sign but both wheels spin together under normal conditions before accelerating, then you have an open differential issue. Yes, a bad differential can cause annoying vibrations while you are driving on the road. Rear Differential Leaks: Symptoms, Causes, and What to Do. Due to the broken gears and teeth of the rear differential, the problem can be much more serious. What does a rear differential bushing do?. The rear end is your mechanics shorthand for the differential. A faulty differential can also cause your car’s wheels to lock up, and this can put you in a dangerous situation if it happens while you’re in traffic. How & Why Rear Differentials Go Bad A stock differential failure is rare, especially if it is being maintained properly. Rear-wheel drive (RWD) In a rear-wheel drive vehicle, the rear wheels deliver the power. What happens if rear differential goes out while driving? Damage To The Tire The differential allows the tires to spin at different rates during cornering, and when it fails, the gears grind, causing the tires to turn at the same rate, which wears out the tires. What Happens When Your Rear Differential Goes Out? Before a rear differential goes out, it starts to give you hints in form of sounds or even leaks. The rear end vibration gets severe especially when negotiating a turn because it is when any malfunctioning limited slip differential would perform worst. We would like to show you a description here but the site wont allow us. A standard diff has the incoming pinion, the ring gear, 4 spider gears and not much else. com/_ylt=AwriitBvm1VkHU0YskJXNyoA;_ylu=Y29sbwNiZjEEcG9zAzIEdnRpZAMEc2VjA3Ny/RV=2/RE=1683360751/RO=10/RU=https%3a%2f%2frxmechanic. Cause: Worn rear pinion bearing or worn gear set Noise: Howl without whir or rumble while accelerating at any speed (gears previously quiet) Cause: Worn gear set due to lack of lubrication or overloading Noise: Howling while accelerating over a small speed range (gears previously quiet) Cause: Worn gear set due to lack of lubrication or overloading. If rear differential replacement is your only option, you can seek out a completed used assembly. What happens if rear wheel bearing fails?. What happens if your rear differential goes out while driving? Q: What happens when your rear differential goes out? Typically, the differential will start giving strange noises when it goes out , or when the bearing fails. A rear differential service typically involves removing the cover, cleaning the remaining fluid inside, resealing the cover, and adding new lubrication fluids inside. How & Why Rear Differentials Go Bad A stock differential failure is rare, especially if it is being maintained properly. However, once they do go bad – excessive mechanical wear between gears (due to lack of lubrication), excessive backlash, or inadequate backlash is to be blamed. To check for a leak, follow the drive shaft to the rear axle, then look around the yoke for fresh oil. A rear differential leak is an issue where differential oil seeps out of the rear differentials housing. A rear differential service consists of removing the rear differential cover, cleaning any old fluid from inside the differential case, resealing the cover, and adding clean fluid. If the noise is louder on one side than the other, the noise is likely coming from a faulty wheel bearing, not the rear differential. Rear differential replacement with a brand new component is higher, around $3,000 to $4,000 in all. You will hear a loud bang and lots of grinding. For example, a differential carrier bearing for a Toyota Camry costs just $38 each. What happens if a differential breaks? Depending on the vehicle and the issue the rear differential has, what happens when the rear differential goes out while driving varies in severity.