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Mammoth Adjustable Front and Rear Short Control Arms for 3+ Inch Lift (07-18 Jeep Wrangler JK)

Item J106863
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Market Price $783.99 You Save 15% ($114.01)
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$669.98 (set of 8)

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      Video Review & Installation

      Ryan: This set of 8 Mammoth Adjustable Control Arms is for those of you that have a 2007 to 2018 JK with 3 or more inches of lift that are looking for a set of adjustable control arms that are going to do a couple of different things for you. These are going to allow you to recenter the axles in the wheel wells, they're going to allow you to adjust your pinion and upfront your caster angle. And they're also going to give you some additional articulation by having heim joints on at least one end of each of the arms. These controllers are going to install very easily into your Jeep. I am gonna actually give it a one out of three wrenches, maybe a strong one out of three wrenches. You don't have to do a ton of this assembly to your Jeep to get these installed. You can really just do them one at a time without really disassembling a lot. But we'll talk a little bit more about the installation in just a second.So when you're looking at a set of control arms, you can find factory replacement control arms. You can find fixed control arms, non-adjustable that are just going to be stronger, and usually at different lengths to change your pinion and your caster angles, or you can find something that is adjustable like these ones. And because these are adjustable, they're gonna be a little bit more expensive than some of the other options. These are also going to have spherical joints on at least one end of either of them. Now, there are some joints out there that are even more expensive that are going to have spherical joints on both ends. Some of those are also going to be double adjustable to make adjusting them all that much easier.And you're going to get that much more articulation out of the control arm with two spherical joints. But these are still going to be a massive improvement over factory. And as long as you're still going to be running a five-link suspension with your track bar, you're really not giving out much by running a control arm that has a spherical joint on one end and a rubber-style joint on the other. As far as control arms go for a set that are both adjustable and have the spherical joints, these ones are pretty fairly priced in my opinion. You can get a set of all 8 of these for $600 and they are going to give you all of the adjustability, all of the strain, and all of the articulation you're looking for.This kit does come with all eight control arms. I have one of each style out on the table here. So you're going to have your larger lowers and then your slightly smaller upper control arms. Again, all of these spherical joints are greasable. They are adjustable on one end, so they have kind of a large jam nut, and then the adjustment on this end. Now because they are only adjustable on the one end, they are single adjustable, not double adjustable, you are going to have to remove the other end from its mount in order to screw it in or out and make that adjustment. But it's not as though you're adjusting your control arms every single weekend. This is really something that you're going to do one time. And then if you do change your spring, or something like that, you may have to do it again, but this is pretty much a set it and forget it. So having the double adjustable control arms are very nice, but certainly not a necessity.Overall, these are going to be a well-built joint. They're all going to be greasable. As long as you take care of them, they'll continue to work great for you. I mentioned before that these come in at around $600 for a set of all 8, and I do think that's a pretty fair price. Now, just for comparison's sake, you can find a set of eight control arms that costs double what this set costs. Now those are usually going to have spherical joints at both ends and be double adjustable. The joints also might have something proprietary going on inside there to make them hold up a little bit better over time.But overall, I think that this is going to be a great option and it is a little bit more budget-friendly. If you want all of the features that those more expensive options have, we have those options. You have to have the budget for it, but those are available to you. If you're looking to save a little bit of money, if you're perfectly happy with one spherical joint, single adjustability, I think this is gonna be a great choice. Now I'll have a member of the install team show you how you get these installed on your Jeep.Man: We're gonna start by removing our upper and lower control arms. But first, we're gonna support our front axle assembly on a couple of jacks. You wanna make sure your vehicle is off the ground and safely supported. We're using a lift. You can do this on jack stands. But please be as safe as possible when doing this to your own vehicle. All right. Let's go ahead and get started then.Now that we have our front axle assembly safely supported with our jack stands, we're gonna go ahead and begin by removing our lower control arms and then move on to our uppers. Now that we have our front axle assembly supported on our jack stands, we're gonna go ahead and start working on our control arms. We're gonna begin on the passenger side, repeat the processes for the driver side, and then we're gonna go ahead and work our way to the rear. To remove our lower control arm, we're going to be using a 21-millimeter socket and a 21-millimeter wrench, to remove our hardware, but we're gonna save our hardware because we're gonna use that for the installation of our new control arms.As you can see, I broke it loose first with a regular hand ratchet. I highly advise doing this because just putting an impact gun or ratchet on your bolt can result in snapping your hardware. And you don't wanna do that.When removing the bolt completely make sure you support the lower control arm so it doesn't swing down and hit you. Now, as you can see, our control arm is still staying put where it is, that's because there's still tension on the bushing on the upper mount for your control arm. You're gonna be very careful once you break this loose, this will definitely cause it to swing down and hit you.Carefully remove your bolt, and put your control arm to the side, and get ready to install your new one. We have a rubber bushing at one end, and what's called a heim joint at the other. Now this gives you a lot more flex and movement in your suspension when you take it on the trails and off-roading, not to mention the fact that it's completely adjustable. When you complete your installation, you're gonna wanna take this and have your Jeep fully aligned to make sure your pinion angles are correct.For installation, just slide your new control arm up into the control arm pocket, install your hardware, but don't snug this down quite yet, until you have your Jeep lowered at full weight, then you can go ahead and tighten it up. This won't put any stress or rip your brand new bushing. For the front, it's the same process. Swing it up into the pocket and install your hardware. Now when installing the hardware on your front heim joint, you're gonna wanna make sure that you align the center sleeve up with your holes to make it a little bit easier for you. That way you're not fighting it too much, trying to get your new hardware in.That completes the installation of our lower control arms. Now we can go ahead and move up to our upper control arms. Now, for the removal of our upper control arm, we're gonna be using an 18-millimeter socket and wrench to get these out. For the rear bolt on your upper control arm, there is actually a hole on the outside of your frame that you're gonna go through to get your socket on the inside bolt. This is the hole you're gonna be using to put your socket and extension through to get the bolt for your upper control arm. I just noticed that our Jeep is still equipped with the factory tab nuts that are on the back of the control arm bolt. This is a big helper. You actually don't have to go through this hole in the frame to access them.But if your Jeep does not still have these tab nuts, that is the hole that you would use to access this hardware. You'll notice I switched over to using a ratcheting wrench. This is because a ratchet and a socket really doesn't fit up around the exhaust. So if you have a ratcheting wrench, this is great. If not, a regular wrench will do just fine. This is the factory tab nut that I was speaking of. Sometimes these tabs fall off.Now to get this bolt out, you've seen I had to work around the exhaust a little bit. Luckily, I was able to use the flex that's in our factory motor mounts to get our engine to flex over a little bit, just so I can sneak the bolt out. When reinstalling this, I'm gonna show you a little trick that'll save you a lot of time and effort whenever you need to go back and adjust your control arms. The front bolt in our upper control arm has a lot more access to it. So let's go ahead and get that one removed. And just be careful that the control arm doesn't swing down and hit you once again. Now that our stock upper control arm is out of the way, let's go ahead and get our new one in place.Now, I told you I had a little trick for reinstalling the upper control arm bolt that mounts to the frame. Remember that hole that you can access from the other side, we're gonna put our bolt in the reverse way and have the threads facing out, that way our nut goes on the outside instead of on the inside. This way if you ever need to remove this to adjust your new control arm, it'll be a lot easier.Now you can go ahead and snug up all your hardware, but you don't wanna completely tighten it just yet. Remember, we wanna make sure that our Jeep is on the ground and full weight is on the suspension before we tighten these up. This is because if you tighten them up now and put the full weight on it, you run the risk of tearing your brand new bushings that are in your control arms. And you don't wanna do that. That'll cause a lot of squeaks and premature wear of your new bushings.Now you're all together on your passenger side. You can go ahead and repeat this on your driver's side. Or if you start on the driver's side, repeat it for your passenger side. Whichever way you decided to start, just go ahead and make sure you repeat the same process for the opposite side. Once everything's tied up in the front, we're gonna go ahead and move to the rear. Now just like your front, you're gonna make sure that your rear axle assembly is supported with a jack stand. This is for safety. I cannot stress safety enough to everyone. I've seen too many accidents and I'd hate to see people at home have accidents too.We're gonna begin by removing our lower control arm, once again, using our 21-millimeter wrench and socket. Now, if you're doing this like I am, and you left your wheels on your Jeep, now that your lower control arm is out, you might wanna go ahead and get your upper control arm out. This gives you a little bit more room to do so. If you took your wheels off your Jeep, you probably wouldn't have this problem.Now that our control arms are installed, just make sure once again, you repeat this for the passenger side. Same process, no easier, no harder. When the vehicle's done, go ahead and lower it back down on the ground, making sure the full weight is on the suspension. You can go ahead and tighten up all your bolts and torque them down to spec. After that, you wanna go ahead and go make sure you get yourself in alignment. This is very critical because you want to definitely make sure that your pinion angles are where they're supposed to be. Otherwise, you can run into the risk of blowing your driveshaft out. And that is something you definitely don't wanna do on the highway or on the trail.Now that we've reached the end of our installation, just go ahead and make sure you go back, throw a little grease in your heim joints, and make sure that for more parts and videos like these, you visit us at

      Product Information

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


      • Improves Traction - Allows for Greater Articulation
      • Front and Rear Control Arm Kit
      • Designed for Jeeps with a 3+" Suspension Lift
      • On-Car Single Adjustable
      • Tubular Steel Construction
      • Black Powder Coated Finish
      • Greasable Heim Joints
      • Direct Bolt-On Replacement
      • Sold as a set of 8
      • Fits all 2007-2018 Jeep Wrangler JK Models


      Improves Articulation. Improve the articulation of your Jeep JK with a Mammoth 4x4 Adjustable Control Arm Kit. Designed for 3 plus inches of suspension lift, this complete kit includes 8 rugged control arms that are equipped with Heim Joints to maximize articulation. This Mammoth 4x4 Control Arm Kit was designed with the adventurous Jeep enthusiast in mind.

      Single On-Car Adjustable. Unlike some other aftermarket control arm kits that are fixed, Mammoth 4x4 Control Arms are single on-car adjustable. This allows you to precisely dial in your suspension settings, specific for your lift/application, to ensure you stay safely on the road or the trail.

      Durable Construction. Mammoth 4x4 manufactures their Controls Arms from heavy duty steel tubing for superior strength and rigidity. The Arms are completed in a black powder coated finish for durability and long lasting corrosion resistance. Mammoth 4x4's Control Arms come complete with zinc coated heim joints that are greasable to eliminate binding.

      Bolt-on Design. Mammoth 4x4 engineered their Adjustable Control Arms to be a direct bolt-on replacement for the stock arms. Installation can normally be completed in about 5 hours’ time with just basic hand tools. The Arms will need to be adjusted to the proper pinion angle for your specific lift. Please note that an alignment is highly recommended after installation.

      Application. This set of eight Mammoth 4x4 Adjustable Front and Rear Control Arms are designed for use on 2007-2018 Jeep Wrangler JK models.

      Mammoth 4x4



      Mammoth J106863

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Front Upper Control Arms
      • (2) Front Lower Control Arms
      • (2) Rear Upper Control Arms
      • (2) Rear Lower Control Arms

      Tech Specs


      Customer Reviews (43)

        Questions & Answers

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