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Installing the Coverking Gladiator Headliner

B34c0n

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The gladiator is our road trip/camp/tow rig so it made sense to add a headliner for noise and heat. I'm personally not a huge fan of the kind that only sit in the middle of the hard top and leave a bunch of white composite showing. The coverking one covers completely and so it matched my visual needs.

After installing it I measured a 10-15f degree difference in the cab on an 80f day. I would say in generally it's not sweltering when getting in on a SoCal sunny day like it was before. I can even put my hand on the inside of the top when it's been sitting in the sun all day. It also doesn't echo inside anymore!

If you prefer a video form I made one. But below is the same content but scrollable, clickable and stopable. The only thing the video has that the text below doesn't is a way to hear the reduction in echo in the cab. But that's in the first few seconds of the video if you care about that.



Feel free to ask any questions below! I likely missed something in the writeup.

The only really difficult/hard part is figuring out where the provided glue/stick strips go. The included instructions were a youtube URL. Not a QR code to the video, a straight up URL to type in yourself. Once you figure out what goes where it's easy enough to do yourself. I laid it all out on a piece of cardboard and figured out the numbering. I've attached a PDF that is the numberings + where they go based off the coverking youtube video.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.20.1


After that it's just time to get started. I started with the freedom panels. It's a good place to practice, it's a lot more manageable.

First thing first is to pull the latches off. The coverking kit comes with the tools you need, but so does your Jeep most likely. The Jeep provided kit has a mini ratchet which is way nicer to use than essentially an IKEA allen key. Make sure to leave the windshield latch in place though!

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.48.1


Once you pull those off you can get started on the install. Clean it really well with isopropyl alcohol and a rag. These hard tops are essentially "cast" composite so they have lingering mold release. It's basically a type of wax that prevents epoxy/resin from sticking, but it also will prevent the glue strips from sticking well.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.49.1


First let's start with a tip! If you make a mark with a sharpie on each side of the glue strips plastic covering, the sharpie only really works on one side. The side the sharpie works on is the side it will peel off first! I found this out halfway through the project.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.137.1


The easiest place to start is the middle. I suggest pulling a corner up and sticking it down. From there do the full raised section making sure to get it to stick. You can use a brayer if you think ahead or just use a sharpie like I did. then start to feed it into the valley and up to the next raised portion.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.57.1


The trickiest part is the outer edge. You have to make sure to get the glue strips all the way up to the black paint for it to stick properly. On one side the glue strip tore while installing. It's no big deal, the outer plastic is just to hold it together, the glue itself doesn't really have any structure.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.72.1


Once all the hard top side sticks are down, time for the headliner. Peel the backing off the center only to start with and make sure the carpet seats down super well. After that you can go one edge at a time.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.100.1


After both sides of the freedom panels are complete, pull the hard top off completely and lay it upside down. Just like the freedom top, make sure to clean it with isopropyl and a rag.

Don't forget to pull off the rubber bumps and the back window plastic piece. The bumps just come off with a little force but the back plastic panel takes some effort. It feels like you're breaking it. Just go slow and try to pry as close to the plastic clips as you can.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.127.1


Again, start with the big middle stick panels and move out from there. I found no real difference between 5 and 6 to be honest. One may be slightly larger but nothing I could detect.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_2.11.1


Move out as you go and everything will line up. I found that the foam front corner seals didn't properly fit with the carpet so I had to cut it to fit. No big deal. Just go slow and you'll get it done.

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.172.1


You can see below how much I had to cut out to make it fit right. But it does look good with the extra effort!

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.173.1


Once all the carpet is down, it's time to start on the weather/edge stripping. The kit comes with a rubber edge to put on the door sills and the front edge. This just takes a lot of elbow grease. I found doing it in chunks of 3-4 inches and then going back and pushing where I started down all the way worked best. It does give it a nice finished look!

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.183.1


Now the tricky part. I noticed in their own video the rubber bumps that sit on the roll cage were not fully seated. They would not go in with the extra thickness of the carpet. If you notice in the photo below, the one on the left is untouched from the factory. The right is how I modified it. I cut off the extra little bit that's flat that you can see on the left. That maybe 16th of an inch was all it took to get it seated right! Don't worry, if you mess up crown and omix both have replacements. It's factory part 68005011AB

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.158.1


With that, just put the bumpers on and the big plastic panel in the back back on and you're done!

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.181.1


It really looks great!

Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.193.2


Jeep Gladiator Installing the Coverking Gladiator Headliner Still 2026-05-25 153457_1.150.1
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Jteakus

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That really is a nice job.
 
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B34c0n

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That really is a nice job.
Thank you! I still am quite surprised when I get in how reasonable the sitting temp is.

And how much less echo there is. Still some wind and road noise. But the stereo and conversation echo is gone.
 

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I've been back and forth with a headliner since I bought mine in July 2019. Most of our traveling is done in the spring and summer months and I have a premium twill soft top that I swap to in April. The heater works so well, that I really don't feel like there's a need for extra insulation during the winter months. Your pics and comments make it look easy. Nice job!
 

SanTan38

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I’ve had this for a few years now and for all the same reasons you make, I think it’s one of the best additions to my JT. Only recommendation I would make is watch how much is overlapping where the door seal sits on the top side of the front doors. It can make contact with the upper door seal, above the window, and cause leaks. Especially around the top aft corner of the door frame area. Just trim it back and it’ll be fine. Better insulation, better noise reduction, looks great and holds those Velcro patches a little too well. lol.
 

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B34c0n

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I've been back and forth with a headliner since I bought mine in July 2019. Most of our traveling is done in the spring and summer months and I have a premium twill soft top that I swap to in April. The heater works so well, that I really don't feel like there's a need for extra insulation during the winter months. Your pics and comments make it look easy. Nice job!
I have that soft top on my TJ for summer times. I don't think I'd do this for temp in cold weather. But it seems to make a difference with heat. The heater in the gladiator is really good for the cold. But during the summer I could feel the top radiating heat so it was worth it for SoCal summers I expect. I'll let you know if it doesn't work out when summer hits in full force.
 

AKID_RBM

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I also did the Coverking Liner. Will do so on any future jeeps going forward as well. I used audio sound deadening material and lined the roof before throwing the Coverking on there. If I had to do it over again, I would have cut out around the XM Radio antenna and as the sound deadening stuff pretty much limited its ability to get a signal. I would also be better at covering as much of the roof as I could. Next time I will go slower, and really work on the edge trim.

This thread was also helpful:

https://www.jeepgladiatorforum.com/forum/threads/coverking-topliner-review-install.53330/


Jeep Gladiator Installing the Coverking Gladiator Headliner 20220715_123240
 
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B34c0n

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I’ve had this for a few years now and for all the same reasons you make, I think it’s one of the best additions to my JT. Only recommendation I would make is watch how much is overlapping where the door seal sits on the top side of the front doors. It can make contact with the upper door seal, above the window, and cause leaks. Especially around the top aft corner of the door frame area. Just trim it back and it’ll be fine. Better insulation, better noise reduction, looks great and holds those Velcro patches a little too well. lol.
I will go check that! I did cut around the foam gasket that the back half has. Are you talking about the freedom panels? Either case I am going to go look and make sure. It didn't leak after the first rain. But it wasn't crazy hard.
 
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B34c0n

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I also did the Coverking Liner. Will do so on any future jeeps going forward as well. I used audio sound deadening material and lined the roof before throwing the Coverking on there. If I had to do it over again, I would have cut out around the XM Radio antenna and as the sound deadening stuff pretty much limited its ability to get a signal. I would also be better at covering as much of the roof as I could. Next time I will go slower, and really work on the edge trim.

This thread was also helpful:

https://www.jeepgladiatorforum.com/forum/threads/coverking-topliner-review-install.53330/


20220715_123240.webp
Nice! I thought about doing the same but I saw some complaints about long term stick between headliner and sound deadener.

I wonder how much of a difference that makes vs just the carpet headliner.
 

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I've been very happy with my cover king. I installed mine a little different. I covered the panels with dynomat and then used gorilla spray headliner adhesive. The added weight from the dynomat was minimal. There was definitely a slight drop in wind noise. The echoing when talking inside has decreased greatly and the music sounds so much better!

If anyone is on the fence about this product I would suggest moving forward and installing it. You'll be happy with the results and it makes the interior more comfortable and look better as well.

Great job on the original post! It take a while to install and documenting it like you did is awesome.

The orange tape was in place for the adhesive overspread.

Jeep Gladiator Installing the Coverking Gladiator Headliner Screenshot_20260527-123741


Jeep Gladiator Installing the Coverking Gladiator Headliner Screenshot_20260527-123710


Jeep Gladiator Installing the Coverking Gladiator Headliner Screenshot_20260527-123800
 

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Nice! I thought about doing the same but I saw some complaints about long term stick between headliner and sound deadener.

I wonder how much of a difference that makes vs just the carpet headliner.
I did mine in 2022. No issues so far 🤷
 

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Paint the top with Kool-seal, and use contact cement and black neoprene on the inside. Will save a whole lot of time and money.
 

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Paint the top with Kool-seal, and use contact cement and black neoprene on the inside. Will save a whole lot of time and money.
I get that. But I like the finished look of the Coverking. I don’t think I’d want Neoprene up there. But it’s nice to know there are other options
 
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B34c0n

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Paint the top with Kool-seal, and use contact cement and black neoprene on the inside. Will save a whole lot of time and money.
I think I just replied to your comment elsewhere.

But forums are easier for discussion!

If you've done this, how long did it take for the rubber smell to go away? I suspect the neoprene will hold up better to places where there's a higher chance of moisture. I had to take the carpet out of my TJ because it would just never dry after it rained.
 
 







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