If you're tired of your trailer dragging or needing more clearance for those challenging driveways, the Dexter Trailer Springs Over-Under Conversion Kit is your solution. This kit allows you to move your trailer's leaf springs from under the axle to the top, giving you the axle's diameter plus the leaf spring height in lift—significantly raising your trailer and reducing the chances of scraping. It's compatible with 2-3/8" diameter axles commonly found on 3,500 lbs axles.
Worried about the complexity of installation? This kit comes with everything you need, including spring seats, u-bolts with nuts, tie plates, and nut couplings, with a straightforward installation process that requires no welding. You'll be on the road, enjoying a higher ride with better ground clearance in no time. It's as simple as bolting the new components in place.
Elevate the rear of your trailer to match your truck's height, especially useful if you’ve upgraded to a taller vehicle and now experience a nose-high towing stance. Install the kit to bring the trailer into a level position, improving towing performance and reducing the risk of sway from an uneven setup. This enhances safety and handling, offering a more stable towing experience on all terrains.
Have a tandem axle setup? No problem—simply purchase a kit for each axle. The Dexter Conversion Kit is designed to work seamlessly in tandem, making it easy to raise your entire trailer uniformly and ensure a balanced ride across both axles.
Whether you own a boat trailer, camper, car hauler, snowmobile, or utility trailer, this kit is versatile enough to fit a range of trailer types with double-eye springs and round axles—ensuring durability and compatibility. With its robust design and high-quality materials, you can trust this kit to hold up under pressure and make your towing tasks smoother and more efficient.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hey, guys, Kevin here at trailer and today I'm gonna be showing you how to install the Dexter Over-Under Axle Conversion Kit here on our enclosed trailer build. So we get this question all the time: How can I boost the height of my trailer so that I can get it level with my tow vehicle, especially with newer trucks Seems like Ram keeps making their trucks taller and taller so that they can't, you know, no one can't get their fifth wheel in there without actually hitting the bed rails. So let me show you this conversion kit that we have, on our enclosed trail. So with our tire off now, I can show you what our assembly looks like here. As you can see, the U-bolts are facing up. When we put this conversion kit on, it's going to have our U-bolts facing down.
And then we're gonna be dropping our axle down here, increasing our ride height. But the first thing we need to do is measure our axle. So we're gonna try and find the diameter of the axle so that we can get the correct kit. So looking at it. It looks like we're at two and three eighths inch.
Now, this kit does come with two and three eighths inch and a three-inch diameter kit. That really is gonna go with the size of the U-bolts and then the spring seats. All right, I want to give you some measurements here. Let's see where factory ride height is. So from the ground to the wheel well, we're sitting at 29 and 1/4.
And the ground to the body, we're sitting right at 12 and 3/4. Okay, so now we got our kit installed and the axle flipped under our leaf spring. Let me give you a ride height. So now from the ground to the wheel well, we're sitting at right about 34 and 1/4 inches. And then let me also give you one for, ground to the body.
Sitting right at 17 inches. So it's gonna give us some extra space, handle all those clearance issues that we've been having. So the installation difficulty of this kit is going to vary trailer to trailer. Obviously, with our small enclosed trailer here, it really wasn't that difficult. But if you have a giant fifth wheel, maybe you have a 40-foot fifth wheel with all kinds of weight. Whole lot of axle trying to jack it up, it's gonna give you a little bit more of a challenge. So you're gonna wanna take that in mind while you're doing this. Other than that, just bolting on the parts, really isn't that difficult. It's really just a lot of set up for a couple of changes. So your Dexter Over-Under Conversion Kit is going to come with, two spring seats, your nut adjusters, your nuts, your U-bolts, and your U-bolt plates. So first step of this installation is gonna be removing your tires. So you wanna do that while the trailer is still on the ground. So now I got the nuts off, and take up my wheel. I'll set it to the side. I did jack up this trailer, now that I have the nuts off, and then I added four jack stands. You're gonna make sure the new place, and even amount of jack stands along your trailer just so that you can support it without having a worry about it coming down on top here. Obviously, if you have a bigger trailer, go ahead and use more. Do whatever you feel comfortable with. As you can see, our U-bolts in our U-bolt plate is pretty rusted up here. So I'm gonna spray some penetrating oil on here just so that we can get our bolts off. I'll let that set in just a little bit, and then we're gonna take these nuts off. All right, we got our first U-bolt out. I try to go back and forth on each of these just so that the U-bolt doesn't try to tension one way or the other. All right, now that we got our second U-bolt off and our U-bolt plate down. We can go to the other side, do the same thing. So the next step we're gonna do is we're going to, support our axle here cause right now it is free-hanging since we don't have the bolts holding it to our springs. So what I'm gonna do, is I'm gonna stick a jack right in the center, to just support that weight. So, as you can see, if I lift it up this is just free. You don't want that falling down on you while you're working. There we go. And then we're gonna take this bolt off right here. So we're gonna be dropping off the bolt from the front of our leaf spring. So that's gonna be going towards the nose of your trailer. All right, now that we got that out, we're going to pull out our bolt. This can be a little stiff here just because it's got some weight pressing down on it. Our bolt's actually on here pretty good. We are going to actually just thread our nut back on just a little bit. So that we can hammer on our nut, not damage our bolt here. And then we're gonna pop it out that way. Alright, so next, I'm gonna take a punch, and we're just gonna hammer this, bolt out a little bit. So we're gonna get to a point where the punching hammer isn't really gonna be effective here. And we're just gonna get under and socket it ,the rest off the way out. All right, so now that we got our bolt out. I'm just gonna pop the, spring down out of the hanger. May have to loosen this bolt just a little bit. So that it will hang freely. Just like that. So now we can remove our axle, and move, hang our springs back up and redo our whole setup with the conversion kit. So now we have our axle loose and our leaf springs loose. We're going to pull our axle out. We can get our leaf springs back in place, and then work on bolting our axle. So now we have the axle off, we can put this back in place. I do wanna mention that I did loosen up these bolts just to kinda move this in a little bit. Just so that we can get lined up right. Now we can sled our bolt through. And you are gonna have to kinda hammer it back into place cause it is sticking up just a bit. And then we can thread on our nut. So the next thing we're gonna do, is sled our axle back over into place. And we're gonna take our spring seat, and our adjustment nuts here. I'm gonna slide these on. They don't need to go all the way down. We're just getting them on about halfway just so that we can see exactly where we need to be. So the spring seat is actually gonna sit right here. And then we're going to tighten it down, put up a little bit more. So we'd set this on here. We'll get this level. And then tighten these down using a wrench so they put pressure on here, the bracket on our axle. Alright, so we're gonna just tighten these just so that the spring seat is level. We don't want this actually pushing up off. We want the spring seat actually making contact with the axle. And one other thing I do, want to note is that Dexter highly recommends coming in afterwards and tacking this on both sides so that you don't have any chance of the axle moving it all and getting off level. I already went ahead and put the other side up just so that it was a little bit easier on video to show you me putting this side on. But what you can do also, just stick your chunk of wood, some kind of black, anything that you got. Just to kinda get it up level. And now we're going to, set this on here. So there's gonna be a little, my nipple thing right here and the other side that you're gonna poke onto. It's gonna line that up, there you go. And then you can ,use something to hold it up in place. We're gonna set our plate on here, Just like this. If you set it this way, your bolts aren't gonna line up and you're gonna be hitting, your brake from, or your flange for your axle here. So now we will take our U-bolts. We're going to put them through the axle like that. And then up through our plate. All right, before our U- bolts, we're going like this. Now we're gonna be flipping them upside down this way. So we're gonna get under the axle. And then open into our plate. And then we will put our nuts on. It's gonna get inside through both sides going, then we can tighten it down. Alright, now we can go ahead and tighten these down. So right now I'm just doing this with our regular circle wrench. Just to get it, kind of hand tight. But then we are going to do this, to check what you can find in your instructions. And you do wanna do these evenly. So that you're not pulling on one side too much and throwing it off. So here's our completed conversion kit. Basically, if you look at, our side by side of our axle to start with. From now, we basically completely flipped our system here. The bend of the U-bolt used to be up here and now it's down here. So you're going to gain the diameter of your axle as well as your leaf Springs. So that you can get your trailer sitting a little bit higher so that you can handle all those clearance issues that you might be facing. All right, now that we got our system in place. We can put our wheel back on. So as you can see, now that we have the trailer lowered back down. It's sitting on the wheels. We have clearly a bigger difference here. So we have a way higher ride height, But really that's it for this installation. My name's Kevin. Thanks for watching guys..
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