It is important to have the best automatic diff locker. We are here to help you pick the best one for your needs from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Usa Standard Gear Automatic Diff Locker READ REVIEW

Best For Rear Differential: Buy: Aussie Locker Ring Gear READ REVIEW

Best With Truetrac: Buy: Eaton Automatic Diff Locker READ REVIEW

Best For High Quality: Buy: Torq Locker Automatic Diff Locker READ REVIEW

Best For Easy Installation: Buy: Powertrax Richmond Gear READ REVIEW

Best For High Strength Steel: Buy: Yukon Gear & Axle Automatic Diff Locker READ REVIEW

Best For Worth The Money: Buy: Spartan Locker Automatic Diff Locker READ REVIEW

Best With Locking Differential: Buy: Torq Locker Automatic Locker READ REVIEW

Best For Customer Service: Buy: Yukon Automatic Diff Locker READ REVIEW

Best For Bottom Line: Buy: Powertrax Automatic Diff Locker READ REVIEW

Best For Lifetime Warranty: Buy: Yukon Gear Locker READ REVIEW

Best With Automatic Transmission: Buy: Aussie Locker Automatic Diff Locker READ REVIEW

Best Overall: Usa Standard Gear Automatic Diff Locker

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If you often find yourself scrambling for a good locker, using standard gear automatic diff locker is your solution. The USA standard gear automatic diff locker is a mechanical locker that installs directly into standard differential cases, replacing existing spider gears. Make sure this fits by entering your model number. The spartan locker 's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap!this automatic locker replaces the stock side and pinion gears while utilizing the factory open differential case.

The locker is soft, high - strength steel and it is designed for a great price. Moreover, the locker is one of the most economical lockers on the market today. Most importantly, the USA standard gear automatic diff locker is an excellent choice when looking for an affordable solution in off-road traction.

Almost all customers quickly discovered that the locker is great for daily driving, makes driving in snow and rain way better and more controlled. Further, they strongly agree that the locker fits the amc model 35 rear axle with 15" side gears used in the 92. And, they say that the locker has them for all series Dana 's. In conclusion, the tone of buyers is very positive and we believe that the locker suits the purpose.

• This will fit your vehicle as long as you have an open diff.
• This will not install into your trac lock carrier.
• The locker will not lock up without input from the driveshaft.
• This will fit all non - limited slip 8.8 carriers.

Best For Rear Differential: Aussie Locker Ring Gear

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Next on the list, we've got yet another locker that manages to win our hearts. It's the Aussie locker ring gear and it's widely considered as one of the most convenient lockers you can buy. The Aussie locker ring gear has been thrown at the locker by development engineers and customers and the Aussie locker gets them where they want to go, every time. The Aussie locker is designed to hold up whatever you throw at them, time after time. Also, the locker will not work in posi or limited slip carriers.

The locker is the result of attention to detail not previously seen in the industry. Finally, the Aussie locker ring gear is the most advanced traction added automatic precision locker in the world today.

Almost all customers opine that the locker is the correct Aussie locker for your front axle, the xd. Moreover, a few strongly agree that the locker is ummmm..... are you sure this is a good idea. Also, a few say that the locker fits d30 regardless of gear ratio.

• You get 100 percent traction performance rather than 40.
• This is a stock dana 30 differential it should.
• This works well and it is great off road.
• All Aussie lockers are designed for installation in an open differential.

Best With Truetrac: Eaton Automatic Diff Locker

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Best part: Eaton Automatic Diff Locker costs comparatively low and it is available to ship in 24 hours. Make sure this fits by entering your model number. And, the locker works as intended and it is great off the road. In conclusion, with a 4.7 rating and more than 584 buyers, the eaton automatic diff locker stands as the best choice.

Most customers found that the locker had gears in it, 3 on each side, no clutch. Moreover, they strongly agree that the locker is as good as say air lockers, but if they are considerably cheaper. Moreover, they also found that this unit does not come with the carrier bearings or shims. Consequently, buyers were very happy to recommend it to friends and families.

• This includes the true trac unit by itself.
• This has been used by others since the 50's.
• This will work in a dana 35 with 4.56 gears.
• Limited slip dana 35 yj tj xj zj wj 84-06 3.54 & up.

Best For High Quality: Torq Locker Automatic Diff Locker

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Compared with other lockers in this category, the Torq Locker Automatic Diff Locker has a convenient design. The torq locker automatic diff locker is designed for installation in an open differential. Make sure this fits by entering your model number. And, the locker is also great for great customer service and it is for super fast shipping.

Most importantly, the torq locker automatic diff locker is cnc machined in the USA made of 9310 steel alloy for maximum durability and long life using their proprietary manufacturing processes in an iso 9001 certified facility in Rochester, ny.

Most buyers agree that the locker makes a major difference in the ability of the maverick. In addition, they say that the locker will fit any can-am from 2007+ with a viscolok. In addition, they say that the locker will fit your x3 and there's a 4 year warranty, no tire size or horsepower limit. To sum up, the tone of buyers is very positive and we believe that the locker suits the purpose.

• Easiest locker on the market to install, no spacers, no dowel pins, no measurements.
• These are the only thing not incuded besides the fluid.
• This would be perfect with great customer service and it is fitment.
• This can-am defender, every model plus will only work with can-am TV and ATV'S.

Best For Easy Installation: Powertrax Richmond Gear

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The powertrax Richmond gear's material feels more premium than its price would suggest. The powertrax Richmond gear is great for use where finesse is as important as brutal traction is. The manufacturer says: Whether you want the smooth and quiet operation of the powertrax grip traction systems, our latest design achievement, or the excellent value of the lock-right or no-slip drop in lockers, our motto is the same. The lock - right eliminates wheel spin - up and therefore its associated driveline trauma is negated, the strength and integrity of its surrounding original case and other driveline components are, in effect, substantially increased.

The Locker is the leading manufacturer of traction adding differentials for the light truck, sport utility and performance street rod market. Also, those who have driven their car, suv or light truck up a slippery slope, may have noticed that one wheel would begin to slip before the other. Most importantly, the powertrax Richmond gear is designed for rugged competition and off-road traction needs, This is not for the timid.

Most customers quickly discovered that the locker is the break-in period of the lsd. Further, a few also found that the locker provides solid traction control without the expense and hassle of an air or electric locker. And, they say that this will fit the 1/2 ring gear bolts for the JK 's. Overall, many buyers have used the Powertrax Richmond gear for more than a few months without any complaints, and it shows no sign of giving up.

• This will fit up to 3.73 gears.
• This is built with great part, looks good and it is made for the bottom line.
• This is the zf 9.25 grip pro.
• 8620 internal gears / forged steel case.

Best For High Strength Steel: Yukon Gear & Axle Automatic Diff Locker

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Compared with other lockers in this category, the Yukon Gear & Axle Automatic Diff Locker has a convenient design. The yukon gear & axle automatic difflocker is made with fast shipping and it is made for high performance. Using a patented internal design nearly eliminates common locker failures. The yukon grizzly locker is the ultimate in mechanical locking differentials for street, off - road, and drag racing.

Finally, the yukon gear & axle automaticdiff locker is soft and it is used for high strength steel.

Most buyers opine that the locker fits the 14 bolt gm 10.5 corp. rear diff. In addition, they say that the locker is about 6-7 hours without any air tools. And, they also found that this locker is made with a full floating axle with a 10.5 inch ring. A non floating axle is a 9.5 inch ring. This will not suit.

• This will work in any open differentials.
• This works in an open differential 4 pin carrier.
• This is crafted from exceptionally strong metals.
• This is great in a long bed extended cab.

Best For Worth The Money: Spartan Locker Automatic Diff Locker

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Compared with other lockers in this category, the Spartan Locker Automatic Diff Locker has a convenient design. The spartan locker automatic diff locker is practical and it has smooth engagement. The Manufacturer says: Our two in-house labs in Everett, Washington test metallurgy, fit, finish, and machining precision down to ten thousandth of an inch to ensure a high quality product and long - lasting performance. This helical gear design provides years of maintenance - free service.

The locker provides smoother engagement, quieter operation, and requires no maintenance. Also, it is built tough and it is designed for a great price. Finally, the spartan locker automatic diff locker works well and it allows for smooth traction.

Almost all customers agree that the locker has 3.73 or numerically higher gears, yes. And, they also found that the locker offers conventional ( non synthetic ) gear oil. Further, they strongly agree that the locker is a 3.73 and numerically higher ratio, and as long as the jeep does not have the factory hydralock differential. Obviously, this locker passed the test and had very satisfied buyers eager to share their experience.

• This locker does not require a friction modifier.
• This will provide the correct amount of internal friction to properly bias the torque.
• This is made worth the money, does the job and it is very nice.
• Metallurgy: forged 8620 steel alloy case and internals for superior durability.

Best With Locking Differential: Torq Locker Automatic Locker

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Torq Locker makes beautiful and great lockers with classic and smartly chosen materials. The Torq Locker Automatic Locker design is more forgiving than the rigid dowel pin design. Keep it simple, no air-lines to leak, compressors to fail, cables to adjust or electrical gremlins, The torq locker gives you piece of mind as a reliable, mechanical, automatic locker that can handle any terrain. The torq locker design eliminates and integrates pesky locker components seen in all other automatic drop - in lockers.

Most importantly, the torq locker automatic locker allows for smoother locker engagement.

Most buyers opine that the locker will always lock whenever the axle gets any power. Also, a few say that the locker is compatible with jeep dana 30 front axles. Moreover, they say that the locker will fit your front axle, which is a dana 30. In conclusion, the tone of buyers is very positive and we believe that the locker suits the purpose.

• This makes a pop when you make a sudden turn.
• This is an easier install than that one.
• This will fit dana high pinion 30 and low pinion 30.
• Easiest locker on the market to install, no spacers, no dowel pins, no measurements.

Best For Customer Service: Yukon Automatic Diff Locker

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Next on the list, we've got yet another locker that manages to win our hearts. It's the Yukon Automatic Diff Locker and it's widely considered as the locker that has the most suitable features. The yukon automatic difflocker features 8620 internals for maximum strength. Using a patented internal design nearly eliminates common locker failures. These units are able to provide 100% power to both tires, while allowing for disengagement to navigate corners in the road and bends on the trail.

The locker is made from high - strength 8620 steel. Moreover, it is crafted from exceptionally strong metals. Above all, the yukon automaticdiff locker works well for high performance and it is great for a great price.

Most customers opine that the locker works with a 3.57 & up ratio. And, they say that the locker has an 8.5/8.6 rear end, it will fit. Moreover, they say that this unit will work great as long as your rearend has a 10. In short, for almost all customers, it was what they were looking for.

• This patented design reduces common locker failures.
• This will require a high born set.
• This has a 10 bolt rear cover, not the 14 bolt cover, yes.
• This is a legit yukon locker though for a good price.

Best For Bottom Line: Powertrax Automatic Diff Locker

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The Powertrax line of lockers comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Powertrax Automatic Diff Locker has driven their car, suv or light truck up a slippery slope. They may have noticed that one wheel would begin to slip before the other. Best suited for extreme off-road to severe on-road use, powertrax lock right lockers replace the spider gears in your open differential carrier using basic tools and without affecting your ring and pinion settings. The powertrax lock - right locker is the original locking differential that could be easily installed in existing case assemblies without any special tools or setup equipment.

The locker fits perfectly and it allows for a great deal. In addition, it is great for a great price, It is for the driver side and has a disconnect design. Finally, the powertrax automatic diff locker is designed for rugged competition and off-road traction needs, This is not for the timid.

Almost all customers agree that the locker will fit, and lockers from powertrax lock-right are currently available in many configurations to suit a wide range of racing, off-road and 4x4 vehicles from around the world. In addition, they say that the locker has a Dana 44 and it won't work in that. Also, a few strongly agree that the locker works with Dana 30 regardless of the ratio. In short, at the price, they believe that they got a steal of a deal with it.

• This will fit the Dana 30 front end only in your TJ application.
• This dana 30 locker will lock the axles together similar to a school.
• Special gear and spring design reduce the backlash and therefore driveline windup.
• This is committed to quality, continual improvement and customer satisfaction.

Best For Lifetime Warranty: Yukon Gear Locker

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Yukon offers a variety of lockers for personal choice and yet maintains quality in all the variants. The Yukon Gear Locker is crafted from exceptionally strong metals. Make sure this fits by entering your model number. These units are able to provide 100% power to both tires, while allowing for disengagement to navigate corners in the road and bends on the trail.

The locker is drilled with 7/16" ring gear bolts. Further, it comes with parts number, is used for high strength steel and it works great. Above all, the yukon gear locker is made from high - strength 8620 steel.

Most customers found that the locker fits non-rubicon jk dana 44, 30 spline. Further, a few strongly agree that the locker is great for off-roading but sometimes it locks up and doesn’t let go. Moreover, a few also found that this differential locker is for the non - rubicon models with 30 spline axle shafts. In short, for almost all customers, Yukon product was just what they wanted.

• This can be used in the Grand Cherokee.
• All JK rears use a 3 series carrier with 1/2" ring gear bolts.
• Using a patented internal design nearly eliminates common locker failures.
• This is in the first 100 miles.

Best With Automatic Transmission: Aussie Locker Automatic Diff Locker

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The Aussie locker automatic diff locker has killer features for the price point. The Aussie Locker Automatic Diff Locker has been thrown at the lockers by development engineers and customers and the Aussie locker gets them where they want to go, every time. If you can install a set of brakes, you can install your Aussie locker without any special tools or training. Also, the locker is the result of attention to detail not previously seen in the industry.

Most importantly, the Aussie locker automatic diff locker is designed for installation in an open differential.

Most customers found that the locker works with an open diff. Also, they say that the locker will fit an open differential, will not work with a limited slip differential due to the larger internal opening. Further, they say that the locker will only work with your 2013 if you have a manual transmission. With no doubts, this locker passed the test and had very satisfied buyers eager to share their experience.

• And the Aussie locker can be installed by the weekend mechanic.
• All Aussie lockers are designed for installation in an open differential.
• These are very popular and an awesome upgrade.
• The Aussie locker will not work in posi or limited slip carriers.