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Yukon Gear Grizzly Locker for 30 Spline Dana 44 Rear Axles (07-11 Jeep Wrangler JK; 12-18 Jeep Wrangler JK w/ Manual Transmission)

Item J103772
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      Video Review & Installation

      The Yukon Gear Grizzly Locker for 30 Spline Dana 44 Rear Axles is for those of you that have a 2007 to 2011 JK or the 2012 to 2018 JK with the manual transmission, that are looking for a way to add a ton of traction to your Jeep. This is going to be a three out of three wrench, fairly involved installation that can require some specialty tools and a lot of knowledge. So most of you are gonna send your Jeep to the shop for this installation but we'll talk just a little bit more about the installation in just a second.So when looking to add traction to your Jeep you're going to have a lot of different options. On one end you're going to have a limited slip or positraction differential, and on the other you're going to have a locker, which is what we're talking about here. In the world of lockers there are automatic lockers which is what we have in front of us and then we also have selectable lockers.Selectable lockers will be turned on either electronically or by air, some of them will even have a manual connection from you in the cockpit with a cable down to the differential, whatever the case is, you can very easily turn that locker on and off and it does not turn itself on and off. This being an automatic locking differential, as you might be able to tell from the name is going to automatically turn itself on and off. So when the vehicle is going straight and power is transferred to the differential through that driveshaft it's automatically going to lock up, providing 50% of the power to one wheel and 50% of the power to the other, and that's going to be locked together no matter what. In this situation where you're turning and the tires need to spin at different speeds, this will open up and act as an open differential in that scenario.So the big pros and cons to a locker, an automatic locker like we're talking about today versus a limited slip or a positraction differential is that this is, as I mentioned, 100% power in the differential, 50% and 50% to each tire locked together. There is not going to be any slippage between the two where with a positraction differential or a limited slip differential there can still be a little bit of slippage even when those two things are trying to be locked up even when those tires are trying to be locked up and spinning at the same speed because those posis will use a clutch system which can have a little bit of slip where this is actually a mechanical locking teeth that are gonna lock together giving you that 50/50 split of the power going into the differential.Now, the downside to an automatic differential like this, if you want to call it that, is that they can be a little bit noisy when you're on the road. As they lock and unlock, you can get a little bit of a bang from the differential. Some people that bothers, some people it doesn't. And these are going to be a little bit harsher as well, so it can go from completely unlocked to completely locked like that where a limited slip or a posi is gonna be a little bit more gentle and that can cause a little bit of additional tire wear.Now for the majority of you that are installing something like this, an automatic locking differential in your Jeep, you're probably spending most of your time off-road and not as much time driving around on the road and that's really why these are going to a good option. If you are somebody who spends more time on the road and you don't need as much traction, probably go limited slip, if you're somebody who spends an equal amount of time on-road and off-road, you don't want the banging, you don't want the tire wear that an automatic differential can add, maybe look at one of those selectable lockers, that way you can just completely turn it off when you're on the road but you have the traction when you need it off-road.Now overall, Yukon Gear has been making gears for a long time. They are known in the differential game and they build some pretty high-quality stuff. And because of that, this is going to be a little bit more expensive than some of the other automatic locking differentials out there on the market. Not gonna be the most expensive but it's gonna be mid-range coming in at right around that $650 mark. Now I do think that's gonna be a pretty good deal for what you're gonna get here because there is a good bit of quality here, and like I said, you're kind of middle of the road in price. If you did want something a little less expensive and were also okay with a little less traction, again, that limited slip is going to be a good choice. If you want to step up in cost a little bit but also step up in strength and have that selectability, then you can go to a selectable locker which in general are going to be a little bit more expensive.Now, as I mentioned before, three out of three wrenches for the installation here. We're not going to go through every step of it, but basically, you have to rip everything out of the pumpkin. You're completely removing the carrier, you're putting your ring gear on your new locker which is essentially your new carrier, and then you're completely resetting up that rear which means resetting up all of your measurements, you're a backlash, all of your preloads. So you need some specialty tools and some specialty knowledge in order to get that done and get that done correctly so you don't have any noise out of the differential or any premature wear of that ring and pinion. So, the vast majority of you are going to take your Jeep to a shop to have them install this locker for you, and that is completely okay, again, that's what most people are going to do.So, if you are looking for a great way to add a ton of traction to your Jeep, you don't want step up to a selectable locker but you want more than a limited slip can provide, that's where an automatic locking differential like this is going to come into play and I would definitely recommend taking look this one from Yukon Gear that you can find right here a

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • 100% Power to Both Tires
      • Patent Pending Design Reduces Failures
      • 8620 Alloy Steel Internals
      • Assembled in the USA
      • For 30 Spline, Dana 44 Rear Axles
      • Fits 2007-2018 Jeep Wrangler JK Models, Excluding 2012-2018 Automatic Models


      Locking Power. Conquer the trail with the Yukon Gear Grizzly Locker for your JK's Dana 44. This Locker features a patent pending design that reduces the risk of failure commonly found with locker use for superior performance. It provides 100% locking power and is easily disengaged for open traction on road.

      Extreme Construction. This Wrangler locker is proudly assembled in the USA and features 8620 alloy steel internals for extreme strength. It comes backed with Yukon's 2 year replacement warranty that will provide up to $2,000 in collateral damages. This unit is drilled for 1/2" ring gear bolts. Some exclusions apply, please see manufacturer warranty for full details.

      Application. This Yukon Gear Grizzly Locker is designed for use in 30 spline, Dana 44 rear axles found on 2007-2018 Jeep Wrangler non-Rubicon JK Models, excluding 2012-2018 automatic transmission models.


      Yukon Gear YGLD44-3-30-JK

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

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      Customer Reviews (3)

        Reviews of Yukon Gear Drivetrain products have an average rating of 4.8 out of 5

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