How to tell if you have locking differential

A Simple Guide to the G80 Locking Differential

Jack up the rear both wheel off the floor and turn one wheel. If they turn opposite direction, you got LSD, if not, you got locking diff. It will be a limited slip. Even though they call it a locking differential it's still a limited slip. The factory does not install true locking differentials. As for how to tell what you have you can either take it to a dealer and they can look at the information on the truck and be able to decipher the codes. Or you can do this your self if you want to chase down all these number yourself. Now if you don't mind a little dirt just crawl under it and take the differential off and look. It'll be a good time to change the oil in the axle. Auto locking is a type of diff that locks both axles together automatically preventing them from rotating at different speeds. A limited slip is a diff that limits the slip between axles, but doesn't fully lock them together. All units have some sort of ups and downs. It would be a locking rear differential if you have it. If you have the window sticker for the truck still then look on there it will tell you. Or like one of the other posters said, go to a dealership and give them your VIN and have them look it up. You will have to look at the RPO code list. I believe it is located stuck to the inside of the glove box. The optional locking differential RPO G80 enhances the traction capability of the rear axle by combining the characteristics of a limited-slip differential and the ability of the axle shafts to "lock" together when uneven traction surfaces exist. The differential accomplishes this in 2 ways. First by having a series of clutch plates at each side of the differential case to limit the amount of slippage between each wheel. Second, by using a mechanical locking mechanism to stop the rotation of the right differential side gear, or the left differential side gear on the Each of these functions occur under different conditions. Hope this helps. Select a secluded road, fully depress accelerator pedal from a stop, look for two black marks on the road. Open the glove box and locate the sticker that has the RPO codes looks like alot of 3 digit jibberish. Look for code G80, if you have it, your truck had a limited slip differential from the factory. Answer Save.

how to tell if your truck has a rear locking differential?

Written By: Louis Orellana. A Wrangler's drivetrain is its bread and butter. That said, there is always room for improvement, or to hone it to your off-road needs. Stronger axles, different gear ratios, and even a tougher differential will help you tackle more difficult trails. Wranglers are known to have a terrain capable and rugged drivetrain. The solid axle design paired with an incredible 4WD system, provides Jeeps with a high degree of versatility and durability. This article will explain the differences between Jeep axles, offer a brief explanation of how the legendary 4WD system works, and show you which differential cover belongs to which axle. The Dana portion is the nameplate of Dana Inc. There have been a few different axles used in Wranglers over the years with the Dana 44 being the most popular. The Dana 30 will only be found as a Jeep front axle while the Dana 35 will only be found as a rear axle on Wranglers. Dana 35 axles have earned a very poor reputation in the off-roading world, however, it is a great axle for stock Wranglers. If you intend on running 33 inch or larger tires on your Wrangler, make sure you have a Dana If you try running huge tires on a Dana 35 you will probably end up snapping an axle shaft. Each Wrangler axle has a slightly different look, making them easy to distinguish. The graphic below will show the appearance differences. A Dana 30 cover will look like a rounded square. It should have 10 bolt holes and is 9 inches wide. A Dana 35 cover will look like an oval. Identifying the axles in YJs is pretty simple since there were no options for it. Every YJ came with a Dana 30 up front and a Dana 35 in the rear. TJ Wranglers will have either a Dana 30 in the front and a Dana 35 in the rear unless you have a Rubicon model. In which case you'll have 44s front and back. Some TJs with a Dana 30 in the front can have a 44 in the rear as it was an option from the factory. JL Wranglers have a Dana 30 up front and a Dana 35 in the rear. The exception as always is the Rubicon 44s front and back. The number in the name Dana 30, Dana 44, etc.

how to tell if your truck has a rear locking differential?

All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply. Hottest Questions. Previously Viewed. Unanswered Questions. Ford Ranger XL. Ford Ranger XLT. How do you know if you have a Locking Rear Differential? Wiki User February 19, PM. Floor it. If both tires burn rubber or turf grass you have locking rear. Lift both rear tires off the ground with your transmission in neutral turn one wheel in a forward direction, if the other goes in the same direction you have a locking differential, if it turns in the opposite direction you don't. Related Questions Asked in Differentials What does a rear-locking differential do? To take care of unequal torque power distribution, the selectable manual and automatic locking rear differentials were developed. The wheels of a car fitted with a locking differential will have the same rotational speed as they are interlinked or locked in relative motion to each other. Regardless of the traction friction experienced by a wheel, the rotational speed is maintained and to be the same for both. Locking rear differential offers better traction for wheels compared to the open one. Asked in Differentials what rear end differential does it have? The locking differential came on some of them. To determine if a particular Blazer has a locking differential you need to look for code "G80" on the RPO list. The RPO list is on a sticker in the glove compartment. Asked in The Difference Between What is the difference between differential lock and interaxle differential lock? Differential lock is a driver controlled locking mechanism which locks the speed differentiation of axle halfshafts in differential mechanisms. After locking, both wheels rotate in same speed. But the interaxle differential IAD lockstopsthe speed differentiation of two axles in Tandem axle vehicles by locking the inter axle differential third differential ,after locking IAD both pinions rotate in same speed. Differential, with Some years may have, the question needs to be more specific. Neither mynor my dakotas had it. Asked in Toyota 4Runner Why is rear differential light flashing on Toyota ? The flashing light is letting you know your differential is locked in for more traction. You will need something in the chunk to turn your axle like a locking differential of some sort. Asked in Differentials, Ford F How can you tell if your 2wd Ford F has a 'limited slip' or a 'locking' differential? F has never had a locking differential until the F FX4 model.

How to Identify a Limited Slip Differential

Lockers, swaybars, high range and low range. All this stuff is useful, but when and how should it be used? A basic 4 door Rubicon Jeep Wrangler will help us illustrate the functionality of the selectable locking differentials, and how to use them. When attempting to negotiate a series of off-road obstacles in 2WD, plenty of flex helps maintain tire contact. But when one wheel finally loses traction, power is transferred to the path of least resistance, or the tire with the least amount of ground contact and traction. Thus, the open differential at work. In reality, 2WD has just become 1WD. In the days before lockers, there was a technique that will still sometimes yield just enough assistance to get you out this situation. While maintaining throttle pressure, press and hold the park brake release button. Now sharply pull and release the park brake, pumping up and down in rapid succession. This causes a bouncing effect directly on the spinning tire desperately searching for traction, increasing resistance, which forces power back to the tire with traction, resulting in forward motion. With the dawn of the locking differential, a new world of traction was opened. An ARB selectable locker can be actuated at any time. Well, c onsider both tires connected by a single solid axle shaft, wheels locked together. In a tight turn the inside tire will want to rotate much slower than the tire on the outside, but with the axle locked, both tires are forced to turn at the same speed. This results in a tire annihilating drag, accompanied by the associated barking and squealing of the inside tire. How did they correct that problem? The solution is in the open differential. The open differential is designed to allow independent rotation of the tires. Inside the differential, power is transferred to the path of least resistance. This will often result in a 1WD scenario as illustrated in the previous example. For example, if one tire is on solid rock and the other is on loose dirt, power transfers to the one in loose dirt, which is the path of least resistance. In our tight turn scenario, an open differential supplies power to the outside tire, while the inner tire free-wheels, or coasts. This allows the outer wheel to rotate much faster than the inner wheel, resulting in a smooth turn.

Locker Vs. Limited-Slip

The differential, located at the back of rear-wheel drive vehicles, directs engine power to your vehicle's rear wheels and allows them to rotate at different speeds. The differential also works along with the transmission to control that component's rotational speed. The differential keeps one of your vehicle's rear wheels on the road at all times, especially when making a turn or during bad road conditions. A limited slip differential sends power to both of your vehicle's wheels equally when traveling straight, as well as keeping one wheel on the road during turns, and when traction is needed. Use an automotive jack to raise one side of your automobile's rear wheels. Place a jack stand under the side to support the automobile. Wear work gloves to keep your hands clean. Jack up the other side and put a jack stand in place. Place your automobile's transmission shifter into "Neutral. Spin one of the tires with your hand. If the opposite tire spins in the same direction, you have a limited slip differential. Place your automobile's transmission shifter into "Park" before removing the jack stands and lowering your automobile. This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Runs, contact us. Step 1 Use an automotive jack to raise one side of your automobile's rear wheels. Step 2 Jack up the other side and put a jack stand in place. Step 3 Spin one of the tires with your hand. Tip If the opposite tire spins in the opposite direction, you have an open differential. Items you will need Automotive jack Jack stands Work gloves. References FAQ. Off Roaders: Differential Differences. About the Author This article was written by the It Still Runs team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

How to tell if you have a Limited slip Differential

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