What type of fluid goes in the rear differential?

Differential fluid, also called gear oil, is the fluid that is poured into the rear differential housing. It needs to lubricate the clutches, gears, and bearings in the rear end. It also keeps all of those components cool so that all of the parts in the differential don't overheat and belt. via

What gear oil should I use in my differential?

75W90 GL-5 Gear Oil

The go-to gear oil for most differentials. via

What differential fluid do I need?

The best way to determine which differential fluid is correct for your application is to reference your vehicles owner's manual. Using the appendix, locate the section under fluids, transmission fluid, transfer case fluid, or lubrication. via

How long does differential fluid last?

Usually, differential fluid is changed after every 30k to 60k miles driven. This is a tough job, so must be handled by an expert technician. Only an experienced mechanic can properly wipe out the old different fluid from your vehicle's drive-train. via

What oil is used in a limited slip differential?

Castrol Limited Slip 90 Gear Oil is mineral based gear oil for use as a limited slip differential oil where API GL-5 performance is required. Primarily recommended for use in limited slip differentials fitted to a wide range of Australian, America, Japanese, British and European vehicles. via

How often should rear differential fluid be changed?

The recommendation of most car manufacturers is that you change your rear differential fluid about every 30,000 miles to 60,000 miles. Look at the owner's manual of your car to find the exact mileage amount. This interval gets shorter the harder you drive your vehicle. via

What rear diff do I have?

Stamped Number on the Axle

To figure out exactly what axle you have, you can look for the Dana stamped bill of materials number. This stamped number can usually be found on the righthand side or on the longer axletube on the same side of the tube as the differential cover, facing the rear of the truck. via

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. via

Is Thicker diff oil better?

Thicker front diff oil increases on power steering and add stability (slight push) into turns but if you go too thick it will decrease off power steering. Thicker center diff oil mostly increases the power to the rear more than the front. via

Is Thicker gear oil better?

Higher-viscosity gear oils offer thick films, better wear resistance and protection from corrosion, making them suited to slower gearboxes that operate under more intense pressures and loads. They also seal components better, affording longer change intervals. via

Can you use motor oil in a rear end?

Can You Use Motor Oil In A Rear Differential? The high pressure stresses in transmission systems are not quite as high as those in differentials. shear much more than pressure, so the design parameters for motor oils are quite different. The differential of your car should not be filled with motor oil. via

What is 80w90 gear oil used for?

Gear Oil 80W-90 is designed for use in differentials, both hypoid and limited slip, manual gearboxes, transfer cases and transaxles in passenger cars, light commercials, 4WDs, trucks, construction, earthmoving and agricultural equipment, where this viscosity grade is required. via

What does GL mean gear oil?

GL is short for " GEAR LUBRICANT" API has the following GL classifications: for Gear Oils - GL-1: Oil without EP additive. GL-2: Usually contains fatty materials. GL-3: Contains a mild EP additive. via

How do you know if you need differential fluid?

A burning smell from your differential or gearbox is another sign you need near differential oil. The smell may be coming from oil leaking out of an old seal — you may even notice a reddish stain under your car's parking spot. The burning smell might also be a result of an overheating gearbox from poor lubrication. via

How long does it take to change differential fluid?

Our certified technicians can perform this service in about 10 minutes – while you wait in the convenience of your car. Plus, you could save between 30% to 50% versus the dealership. Many auto manufacturers recommend replacing differential fluid at regularly scheduled intervals. Check your owner's manual for details. via

How long will synthetic gear oil last?

Another benefit of synthetic oils is that the range between oil changes can be extended (up to 30,000 miles for severe-duty applications, and 50,000 miles if the truck isn't used for off-roading or towing). via

What does LS mean on gear oil?

Quality Additives. L S ENERGY SAVER GEAR OIL has incorporated in it a proven extreme pressure gear additive package and a friction modifier system. L S ENERGY SAVER GEAR OIL is formulated to offer enhanced lubricity and limited slip performance. In fact the L S in the name of the product stands for "Limited Slip." via

What is in limited slip additive?

Dri-Slide* Limited Slip Differential Additive

The active ingredients are Phosphoric Acid and Dioctadecyl Ester. via

What does limited slip fluid do?

Limited-slip differentials commonly use clutches to transmit torque between wheels. When both wheels have ample traction, the clutch plates bind together tightly, but smoothly slip enough to allow chatter-free turning. via

What is the difference between 75 90 and 75w 140 gear oil? (video)


Can you mix synthetic gear oil with regular?

So, in the end, conventional and synthetic oils are comprised of the same, compatible components – it's just that the components in synthetics are much higher quality. While you can safely mix synthetic and conventional oils, you're doing nothing more than diluting the performance of the synthetic oil. via

How much does rear differential service cost?

Average Differential Repair Cost

These are light repair jobs that will cost between $200 to $400, depending on the make and model of your vehicle. But if you have more extensive damage to your differential that requires it to be dismantled or overhauled, then you are looking at about $400 to $800 in repair costs. via

How do I know if I have a g80 differential? (video)


What vehicles have a Dana 35?

The Dana 35 (as well as the AMC-15) is found in a wide variety of vehicles. The most common Dana 35 applications are as a rear axle in the Jeep Cherokee, Jeep Wrangler, and Jeep Comanche and as a front axle in the Ford Explorer and Ford Ranger. via

How do you tell if you have a Dana 30 or 44?

  • Dana 30: This axle size is the most common, and you'll only find it on the front of Jeep.
  • Dana 35: This was an axle size used on most Jeep rear axles.
  • Dana 44: These are the beefier axles found on the rear of all Wrangler models now with either a 3.21 or 3.73 gear ratio.
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    Will changing rear differential fluid stop noise?

    How to fix a noisy differential: Replacing the differential fluid may stop the sound, or replacing a pinion or side seal may solve the problem. However, once the noise gets bad, rebuilding or replacing the differential may be the best way to fix the noise. via

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