Are you planning to buy mechanical diff lockers, and are you confused about the options ? You have landed on the right page.

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Our Top Picks:

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

Best For High Quality: Buy: Yukon Gear Mechanical Diff Locker READ REVIEW

Best For Rear Differential: Buy: Aussie Locker Mechanical Diff Locker READ REVIEW

Best For Open Differential: Buy: Sylvan Mechanical Diff Locker READ REVIEW

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

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

Best With Locking Differential: Buy: Yukon Mechanical Diff Locker READ REVIEW

Best With Great Service: Buy: Eaton Install Kit READ REVIEW

Best For Easy Installation: Buy: Powertrax Mechanical Diff Locker READ REVIEW

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

Best Overall: Usa Standard Gear Mechanical Diff Locker

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The USA standard gear mechanical diff locker is long-lasting, rigid and fits well with your daily usage like a dream. The USA standard gear mechanical diff locker is made from 9310 steel for incredible durability and longetivity. 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 designed with high strength steel and it is easy to follow. Moreover, the locker is an excellent choice when looking for an affordable solution in off-road traction. Above all, the USA standard gear mechanical diff locker fits the Dana 30 differential, 27 spline.

Almost all buyers opine that the locker is a perfect fit for chevy k10. And, they also found that the locker had one for the front. And, a few say that the locker is great for daily driving, makes driving in snow and rain way better and more controlled. To sum up, many have used the USA standard gear mechanical diff locker for more than a few months without any complaints, and it shows no sign of giving up.

• This will require an older tj/xj style carrier.
• This is a Dana 44 front end Yea. it will.
• This will pop considerably on pavement in your rear diff.
• This will fit all non - limited slip 8.8 carriers.

Best For High Quality: Yukon Gear Mechanical Diff Locker

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The Yukon Gear Mechanical Diff Locker's material feels more premium than its price would suggest. The yukon gear mechanical diff locker is designed for ultimate durability, is great for customer service, It comes with direct fit and has a positraction style. The Manufacturer says: We use the highest grade 4320 chromoly steel for spider gears, high strength nodular iron case, and high quality composite clutches, The yukon dura grip will provide lasting durable performance for years to come. Also, this is best for good fit, has cover bolts and it is good for country of origin.

The locker is top quality, is good for low quality and it is worth the price. Further, it is rock solid, can ask for good quality, it is for standard rotation and has a disconnect design. Most importantly, the yukon gear mechanical diff locker has reverse rotation and it is perfect for great quality.

Most buyers quickly discovered that the locker would fit the rear 8.6" 10 bolt rear axle in the 07 avalanche. In addition, they strongly agree that the locker fits 12bolt truck applications with 3.73 and numerically higher ratios, and 30 spline axles, as found in the 1965 and newer applications. In addition, they strongly agree that the locker will require a carrier bearing with a larger id than the factory. To sum up, buyers found this to be one of the best lockers for daily purposes.

• This has an 8.6" with a 10 bolt cover, yes.
• It is always advisable to check the back lash before disassembly.
• This does n’t have a ring gear, so you have to use your own.
• All units are backed by extensive product testing and state-of-the-art software design.

Best For Rear Differential: Aussie Locker Mechanical Diff Locker

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If you often find yourself confused about the appropriate and satisfactory locker, Aussie locker mechanical diff locker is your end point. The Aussie locker mechanical diff locker is great off road and it is simple. Special steel alloys for maximum durability and long life, proprietary manufacturing processes, unique heat treatment procedures and 100 percent quality audits with electronic microscopes result in every locker providing unmatched reliability and performance. Also, this will not work in posi or limited slip carriers.

Most importantly, the Aussie locker mechanical difflocker stays locked and it is black.

Most customers agree that the locker is a rubicon, which has a different front axle. Further, they say that the locker will make that prius unstoppable. Also, a few also found that the locker would make a loud pop or bang, more obvious if it unlocked in a tight turn/backing up. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

• This is the result of attention to detail not previously seen in the industry.
• All Aussie lockers are designed for installation in an open differential.
• This is for the 27 spline d35.
• This is a must have for any off road enthusiast.

Best For Open Differential: Sylvan Mechanical Diff Locker

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If you often find yourself confused about the appropriate and satisfactory locker, Sylvan mechanicaldiff locker should be your first option for buying. The Sylvan Mechanical Diff Locker comes with a full 2 year warranty and it is good for peace of mind. When installed you will find a drastically increased traction level for climbing and 4-wheeling. The sylvan climb master 2.0 reinforced pro locker fits compatible with jeeps that have a dana 30 front axle with 27 spline.

The locker allows for a great deal, holds up well, it works perfectly and has a disconnect design. Further, the locker is made worth the money and it works as intended. Finally, the sylvan mechanical diff locker is great for traction for days, can ask for good quality and it is simple.

Most buyers agree that the locker can go back in correctly. And, a few strongly agree that the locker is, again, for your front dana 30, which will accept this type of locker without problem. And, a few strongly agree that the locker is a great bang for the buck locker.

• The manufacturer says: We are confident you will reach the summit.
• Reinforced steel manufacturing; strength and endurance tested. Durable, reliable next - level performance locker!.
• This will clunk, snap, or however one might describe it, but it works.
• This fits jeeps that have a dana 30 front axle with 27 spline.

Best With Truetrac: Eaton Mechanical Diff Locker

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The Eaton Mechanical Diff Locker is capable of outshining several other lockers featured in this list in overall features for the price point. Make sure this fits by entering your model number. Further, the locker works as intended and it is great off the road. In short, with a 4.7 rating and more than 584 buyers, the eaton mechanical diff locker stands as the best choice.

Most buyers found that the locker would work in a dana 35 with 4.56 gears. In addition, they strongly agree that the locker will work with c-clip or non c-clip dana 35, 27. Moreover, a few say that this unit would work great in a 1992 jeep Cherokee laredo xj as long as you have a Dana 35 rearend. In conclusion, for almost all customers, it was what they were looking for.

• This includes the true trac unit by itself.
• This unit does not come with the carrier bearings or shims.
• This has gears in it, 3 on each side, no clutch.
• Item package dimension: 12.8" l x 8.61" w x 5.99" h.

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

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Compared with other lockers in this category, the Yukon Gear & Axle Mechanical Diff Locker has a convenient design. The yukon gear & axle mechanical diff locker is made from high - strength 8620 steel. 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 mechanical difflocker is crafted from exceptionally strong metals.

Most buyers found that the locker is great in long bed extended cab chevy. Further, a few also found that the locker will not change the backlash between the ring and pinion. And, they strongly agree that the locker will work in any open differentials.

• This is made with fast shipping and it is simple.
• This works in an open differential 4 pin carrier.
• This allows the outside wheel to ratchet.
• Patented internal design reduces common locker failures.

Best With Locking Differential: Yukon Mechanical Diff Locker

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Compared with other lockers in this category, the Yukon Mechanical Diff Locker has a convenient design. The yukon mechanicaldiff locker 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 works with high strength steel and it can for customer service. Lastly, the yukon mechanical diff locker is great for a great price and it is perfect for great quality.

Most buyers quickly discovered that the locker was a drop - in replacement for the factory g80. And, they also found that the locker would require a high bearing set. Further, they say that this locker is more for a purpose built off - road setup.

• This works with a 3.57 & up ratio.
• This is a legit yukon locker though for a good price.
• The yukon grizzly locker has a mechanical locking differential.
• This is made from high strength 8620 steel.

Best With Great Service: Eaton Install Kit

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate locker. The Eaton Install Kit is exactly that - it's a simple locker that hits all the right notes. The eaton install kit is great with great service and it is maintenance - free. Make sure this fits by entering your model number. The Detroit truetrac was the first helical gear differential ever introduced into the automotive aftermarket as an eaton brand. Lastly, the eaton install kit is black and it is effective.

Most buyers found that the locker is a great option for a front axle like a dana 30, where a true locker may add too much stress to the stock parts. Also, they strongly agree that the locker is a full - blown carrier replacement. Further, they also found that the locker is not noticeable when you want to turn. In short, at the price, they believe that they got a steal of a deal with it.

• This will fit in a stock dana 30 housing.
• Catalog notes: applies to non-disconnect only.
• This will take ~100 ftlbs to make them turn in different directions.
• It is wise to replace the oil seals when replacing the differential.

Best For Easy Installation: Powertrax Mechanical 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 Powertrax Mechanical Diff Locker and it's widely considered as the locker that has the most suitable features. The powertrax mechanical diff locker is also important for outdoor enjoyment and recreation. The manufacturer says: This is our strongest locking differential, offering the ultimate in competition and off-road capabilities. 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 is widely used in demanding off-road applications around the world requiring extreme traction output and high-strength. Lastly, the powertrax mechanical diff locker fits perfectly and it allows for a great deal.

Most buyers agree that the locker has the dana 44 and it won't work in that. In addition, they also found that the locker will fit, Diff 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. And, they strongly agree that this dana 30 locker will lock the axles together similar to a spool. To sum up, many have used the powertrax mechanical diff locker for more than a few months without letup, and it shows no sign of giving up.

• This is committed to quality, continual improvement and customer satisfaction.
• Using 3×2 spiral gear technology, the powertrax grip pro delivers progressive and variable traction.
• This will fit the Dana 30 front end only in your TJ application.
• This works with dana 30 regardless of the ratio.

Best For Lifetime Warranty: Yukon Gear 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 Gear Locker and it's widely considered as the locker that has the most suitable features. The yukon gear locker comes with parts number, is great for high performance and it works well. 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.

Lastly, the yukon gear locker will not work with early tapered axle designs that used an axle spacer button.

Most buyers agree that the locker will if they are both Dana 44s front and rear. In addition, a few strongly agree that the locker fits a dana 44 for that year. In addition, a few strongly agree that the locker is great for off-roading but sometimes it locks up and doesn’t let go. Overall, many customers have used the yukon gear locker for more than a few months without any problems, and it shows no sign of giving up.

• This will fit for ratios of 3.92 and higher.
• This has handling quirks, especially in rain and snow.
• This will try to swap ends on you.
• This is drilled for 7/16" ring gear bolts.