This product was a perfect fit to replace my original non-functional rails. I have added a yakima rack and it is perfect.
Thank you to Just for Jeeps for sending me a link on installation to help.

These rails worked great on my 2018 Jeep Grand Cherokee High Altitude. The front and back bolt set for each rail needed to be adjusted to get the proper fit-up, but that was expected per everything I read on forums.

2018 GC High Altitude

We bought this just a week before a trip we wanted to take our paddleboards on and didn't realize the stock rails were worthless. The rails arrived the day before our trip and I installed them with relative ease. As others have mentioned you have to play around with the height of the front and rear bolts. I found some washers with a slightly larger diameter laying around and added one to each of these bolts to achieve a nice interface for the underside of the rails to get a snug and flush fit.

See the links Corey with Just for Jeeps posted as they are helpful.

We've taken 2 boards on 2 trips now using the Thule SUP rack and the whole system is very solid and secure.

Such a small upgrade but has made a big impact on the overall look of my Grand Cherokee. I purchased these because the rails that originally came on my Jeep were not functional.

Too long to install cause had to make adjustments on the front and rear bolts height. Adjusted height to make plastic enclosure sit close to roof. Started w/ 1/4" gap and then 1/8" gap and finally perhaps 1/16". Had to remove front plastic clip cause the round bolt head made plastic enclosure sit 1/4" above roof.

Anyway worth it cause now I can to install accessories. Don't know why f%^&*$ing Jeep did that however it was my bad for not noticing that.

Purchased these to replace the non-functional black rails on Jeep Grand Cherokee High Altitude edition. They look good and are solid. It takes a lot of trial and error to get It so there’s little to no gap between the ends of the rails and the roof. I still can’t get them completely flush, which is mildy annoying. There are some threads w tips but even then these haven’t been the perfect fit (I may be the only one who notices the little space though). It would be nice if some install tips came with these, and also would be nice if the bolts and washers were included. They aren’t, so make sure you save the ones that are with your existing rails. Once you figure these out, it takes only maybe 10-15 mins to install, including removal of the old rails. Again, I have no concerns about how solid they are and they look great. Only deduction is due to minor fit issue.

I really love these roof rails what a difference between SRT low profile rails and these ones thanks

Product is good solid product but needs to come with directions. It’s simple once you figure it out but you have to figure it out first. Once they are on they look great and are very functional

I was a bit worried at first due to the comments about the 1/8" to 1/4" gap on the front end. Installation is simple but time consuming because of the small adjustments you have to make on the front and back end to get the rail to sit flush. I noticed what people were saying about the gaps as I had the same problem. It's all about adjusting the height on the rear and front end screws and playing with adding/removing washers. A flush type washer works great on the front. I ended up adding larger washers on the rear ends and flush washers on the front to help catch the rail into the correct position. Looks great!

I brought these to add to my blackout project I am doing on my WK2. They are a direct fit and very easy to install. They really add to the blackout look.

They the rails were a bit nicked up out the box- mildly disappointed with that. It happens in transit. Nothing that you can see with out really looking for it. Overall happy with the purchase and upgrade!

Dopest dope I ever smoked

Since these are factory installed parts there are technically no installation instructions. However here are some links to JeepGarage.org where a forum member shows you how to install these rails if your Jeep didn't come with them.

http://www.jeepgarage.org/f176/side-roof-rack-rails-need-help-please-38906-6.html#post737455

http://www.jeepgarage.org/f176/side-roof-rack-rails-need-help-please-38906-7.html#post740783

I have an Altitude. I did not like the fake rails it came with. I ordered these. Everything wrt JustForJeeps was excellent. The only issue I had was with figuring out the installation of these rails. The end cap bolts require adjustments in order to slide the rails into place. I could not get them adjusted perfectly so the rails on the ends sit flush with the roof. The ends are sitting just off the roof about 1/8 to 1/4 inch. Anchoring the rails to the roof posed no issue. Those bolts just tighten right down with an Allen wrench. Just looking at the rails, they look great. They are secure to the roof as well. No one prolly notices the tiny gaps on the end, but I see them every day.

They fit perfectly and an easy install. One drawback is that they do not come with the proper screws. There are four special screws that are needed for the front and back mounting.

Bought these as a replacement for the Black trim pieces that come on the Altitude and SRT models. I have a 2015 GC Altitude. There was no drilling required as the bolts were all aligned properly. The front and end slide in to place. I do not think the bolts that were existing are the proper pieces to use for the new rails but I made them work ( had to take out the washer). It does not require a lot of skill to install, just some patience as getting the front and back bolts aligned correctly and set correctly takes a few tries. I recommend putting masking tape on your roof to avoid scratching as the rails slide into place.

The rails installed relatively easily, just needed to work a little on getting the front and back plastic mounts to fit. Followed the lead of some reviewers here that shared how they did it.

Roof rack looks good and fit okay, but install required tricky mods to some screws. It was a fair amount of test fitting and adjustment needed to get the front and rear to lay down.

The gloss black finish looks great on my 2015 GC Altitude, however, like many others, I could not get a tight fit on the front. I ended up using a larger washer to hold it in place and make it tight, but I still have roughly an 1/8" gap where the roof rail is sticking up from the roof. Maybe it's the mold or I just need the different hardware but it does fit tight everywhere else. I wish different hardware was included for the front of the rails to sit flush.

Installed them on my 2018 sterling edition for more of the black look