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Roadmaster Crossbar-Style Base Plate Kit Installation - 2019 Jeep Wrangler

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How to Install the Roadmaster Crossbar-Style Base Plate Kit on a 2019 Jeep Wrangler


Shane: Hey guys. Shane here with etrailer.com. Today I have a 2019 Jeep Wrangler, and I want to walk you through how to install the Roadmaster Crossbar-Style Base Plate. Base plate is going to be one of five main components needed to flat tow your vehicle. The other four are going to be your tow bar, your safety cables, your wiring, and your braking system. Base plate is going to attach directly to the chassis of the vehicle to give you a solid connection point for your tow bar to allow you to flat tow the vehicle.

It's going to have a black powder coat finish, steel construction so it's going to hold up really nice and stay looking nice for a really long time. It's going to have removable arms to allow you to give your vehicle a nice clean look when you're not flat-towing it. If you're not familiar with the crossbar style, this is what a crossbar is.And what this allows you to do is pull these top two pins. You can leave this bar attached to your tow bar and just lift the bar off of the base plate removable arms, fold it up next to your vehicle whenever you get to your destination. When you're ready to put it back on, you simply line up the holes and slide it into place, reinstall your pins.

You can also disconnect your tow bar by pulling this pin out here and it'll remove your tow bar from the crossbar itself. Keep in mind this crossbar and the brackets are not going to come with this base plate. However, they can be found here @etrailer.com, and they're going to work with many different tow bars. As I mentioned, to remove your crossbar and leaving it attached to your tow bar, simply disconnect everything from your vehicle side, pull the top two pins, and you're just going to simply lift it off.To remove your arms you simply pull the ring, twist and pull it out. It's going to have a collapsible spring loaded pin.

So when you're ready to put it back in, push it until that pin collapses, twist it until it clicks. And you can see with them out, vehicle maintains a nice clean look. These are going to be a safety chain loops. What I like about this base plate is it doesn't have a crossbar on the outside of our belly pen. These are going to be two separate brackets.

One's going to mount to the frame rail on this side, the other one's going to mount to the frame rail on the other side of the vehicle. So without having that cross brace or crossbar here, I think it maintains. Really looks nice on the vehicle, really makes it look a lot better.This base plate kit is also going to come with a mounting bracket for your wiring. Again, steel construction, black powder coat finish. So not only does it match the base plate itself, but it's going to hold up really well against all weather conditions. As far as the installation, it's pretty simple and straightforward. You will have to remove the belly pan on the bottom and your bumper. It's going to attach again directly to the chassis of the vehicle. There is one hole on the top side of your frame rail that you will have to open up a little bit, but other than that, it's going to come with all the necessary hardware. And that one hole is the only drilling you're really going to have to do. Now that we've gone over some of the features, let's walk you through how to get it installed.To start your installation, we need to remove our belly pan. We're going to take an eight-millimeter socket, we're going to remove the two bolts right down here on the bottom. Then we're going to take a trim panel tool and we're going to have fasteners that run right across the top of it. We're going to have also one in this hole and one on the opposite side. Take a trim panel tool, and we're just going to take the center, pry the center down like that, and then you can get the base out. We'll repeat that for the rest of them and we'll take out the roll pan and we'll set it aside. On your passenger side, if you follow right down on your bumper, there's a plug there. If you have fog lights, this plug is going to have to be disconnected.There's a gray tab here we're going to push out. This one's a little bit dirty so it maybe a little difficult to get it pulled apart. There it is. Just like that. Take a 16-millimeter socket, we're going to remove these two bolts and remove this plate. And we'll set this aside. We're going to take an 18-millimeter socket, we're going to have two nuts on the inside of our frame rail, two nuts on the outside, and that's going to be on each side. We need to remove all eight of the nuts so that we can remove our bumper. In between the top floor bumper and our grill, we're going to have two fasteners on this little panel here. We need to remove those. Trim panel tool, flathead screwdriver. These are going to be similar to the bottom ones. You need to pry up the center and you can take the base out just like that. Again, we'll have one on this side and one on the passenger side.Then we're going to slide our bumper off and we'll set it aside. On each frame rail, inside and outside, you're going to have a frame stiffener. Take a 16-millimeter socket, and we're going to remove the bolt and the stiffener. The stiffener will not be replaced. Reinstalled. Then we're going to take a half-inch drill bit. You can see the two holes that I have marked. This one was actually already opened up to a half inch. If yours isn't, you're going to need to open up this one and then open up this one to a half inch. You want to make sure that it goes all the way through to the other side. We're going to do this on both frame rails. Last thing we need to do is there's this guard that we took off, we need to trim out right here. You can see where I have it marked. And this whole center section is not going to be re-installed. You can use a rotary tool with a cutting blade, or you can use a cutting wheel like this to get it done.Then you want to make sure you reinstall it on the correct side. The hole that held up your guard, you notice it's going to be towards the outside of the frame rail. Your kit's are going to come with a bolt, looks like this. We're going to thread it into place. The factory bolts, because they have a washer that's on them, if you put those on, they won't allow your arms to slide into place and lock. So you have to use the hardware that comes with the kit. Then we can tighten it down with an 11/16 socket. Then we're going to take our bracket, your safety chain loop here, this is going to be towards the inside of the frame rail, so that'll tell you what side what bracket. Which side the bracket goes on. We're going to line it up. We're going to take the factory bolts that we took out that we're holding our frame stiffeners in, and we're going to loosely install it.Then we're going to take a long bolt, flat washer and make sure you use the red loctite. Loctite does not come in your kit, however, you can find it here @trailer. We're going to take a spacer, it's going to look like this, and we're going to go in between the bracket and the frame, put one here, and then we'll put one here. And that's going to be the same on both sides of the vehicle. And we're going to put on a flat washer, a lock washer, and then a nut. Then we're going to take another one of our long bolts, flat washer, we're going to go through this hole all the way through, do that same thing on the other side. And we're going to take a smaller hex bolt like this, put on a flat washer, and then go through this hole.You're going to have a block, looks like this. We're going to go right up through the bottom, there's a hole, and we need to thread our bolt into it. Thread it in. inaudible 00:09:25 with the hole. If for some reason you're having trouble getting this lined up, you can take a die grinder, kind of grind this bracket here, not this one, that inside edge with the bolt to thread onto the plate. Once you have that, you're going to repeat that same thing on the other side. Now what we're going to do is we're going to tighten our hardware down. We're going to start with our factory 16-millimeter bolt. What you don't want is you want to make sure that these brackets are not lifted like that to where it's covering that hole because these are the holes that our bumper goes through. So we just want to make sure that's lined up and then we'll tighten that factory hardware into place just like that. We'll repeat the same thing on the other side.Then we'll come back with a three-quarter inch wrench and socket. We're going to tighten the two longer bolts that we installed, the five-inch bolt first. Then after we tighten those, then we can tighten our smaller one down here at the bottom. Then we're going to come back and we're going to torque our hardware to the specifications in the instructions. Once you get all your hardware torqued, you can cut the rod off that's hanging out here from the plate that you installed. Next we need to trim out our underbody panel. Follow the instructions on how to measure. You're going to measure from this inside edge, over two and three quarter inches, from that line, over three and three quarter inches. And it's going to be a total of six inches from this edge. We're going to be cutting this rectangle out. Before we do that, we're going to make a radius here in the corner. Rather than it being square we're going to round it. So we're going to take a inaudible 00:11:42 three-quarter bit, and I'm going to get it lined up inaudible 00:11:49 two edges.We're going to cut that radius out. Once you get your circles cut out, you're going to take the rotary tool and cut out the rest of it. Once you get it cut out, you can take the burrs like this and fold them down. Some of them are going to fall off. Take a knife and trim it along the edge. Once you get one side done, repeat the process on the other. And then we're not going to install it yet, we're just going to test fit and see if everything lines up with inaudible 00:13:18 bottom. See if we need to do any extra trimming. Yeah, I think it looks pretty good. So we'll take this and set it aside, and we're going to re-install this in just a little bit.On the Sport and Sport S models, you're going to have a fog light cover, it's on the back here. We need to cut out, you can see where I have this line from this top edge over, we need to cut the bottom part off. Since there's wiring that runs back behind here, what I suggest take a seven-millimeter wrench or socket, take out this bolt, this one, this one, this one, this one, this one and this one, pull this panel off to cut it so you don't damage any wires.Once you get one line cut out, you're going to repeat it for the other line. Once you have your panels cut out, go ahead and reinstall them on your bumper, and then you can reinstall your bumper. If you're wondering why we had to cut this out, gives me an open space, it's because inaudible 00:14:34 attached was right up here on the front of the frame rail with our base plate in place, they're not going to hook in there anymore. But we still want it to keep our attachment points for our roll pan. Once you get your bumper put back in place, you can go ahead and reinstall your belly pan, and then they have a bracket that comes in your kit, they tell you to use a self tapping screws and mount it right to the bottom of your bumper here.I may try to find a different way to do it. You angle this up and that can put a little bit of strain on the plug. We can bend this bracket if we want to. What I might do is take out one of these fasteners from this pan because there is a metal cross-member right behind the bumper here or behind the plastic part of the bumper. And they install it just like that and use my self tappers and go right up through the cross-member. To get this mounted the way I want it, and it's completely up to you if you do it that way and drill holes that way, you can put them through the bumper.I like mine to be a little bit cleaner, a little bit flat. So, as I mentioned, use the two holes in the bracket to mark your holes, drill up through that plate. And what I did instead of stacking washes, I just put three nuts on it. And now you can take it and slide it up like that and we'll see when we mount our wiring, our six-pole plug, it's very flat flush and nice and clean, pretty much even with the edge of our base plate. Once you get that done, you're ready to go. That's going to do it for a look at and installation on the Roadmasters Crossbar-Style Base Plate on your 2019 Jeep Wrangler.


Questions and Comments about this Video

Charlie S.

how long did the entire installation actually take?

Etrailer Expert
Reply from Chris R.

From beginning to end this is about a 3-1/2 hour install process.

Reply from Charlie S.

@ChrisR Thanks! Any idea of total time to install the wiring for lights/brakes?

Etrailer Expert
Reply from Chris R.

@CharlieS This will depend on what particular wiring and braking system you're installing. Do you already have these or at least know which model kits you think you'll be getting?

Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video by:
Chris R
Employee Jonathan Y
Video by:
Jonathan Y
Employee Shane H
Test Fit:
Shane H
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F
Employee Clayton O
Test Fit:
Clayton O

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