Rhino-Rack Jeep Wrangler JL Unlimited 4 Door Hard Internal Structural Roof Rack/Bare Backbone 3 Base Mounting System in Black

This was a great upgrade. I made my own roofrack that bolts to the backbone system. And the braces inside that transfer the weight to the body are nice to hang stuff from and use them to secure camping gear. I used butyl to seal the holes in the hardtop and haven't had any leaks.

Fantastic product. Very well-designed. Not too difficult to install. If you're looking for a strong sleep design, this is what you need.

Installed on my Jeep Wrangler JL. Very sturdy mount for a roof rack. 800# Static load, 264# Dynamic load.

The system is excellent on fit. Just make sure you purchase the correct model for your vehicle. Installation instructions i give 2 out of 10. Very cartoonish and does can be confusing. What I did like was the parts layout board. Once unpackaged, you layout all the parts and pieces on to a board and just select the part you will be working on. Although it would be a lot more helpful is the parts were stamped with the corresponding layout board. Installation is scary as you will be drilling a total of 12 holes into the Jeep fiberglass top. I installed the back-bone system while my top was on the jeep but i think it would be easier to install if you take the top off for drilling and securing the bolts. Sort of need to contorque yourself and the roll bar cage make it difficult to install the bolts and washers (i've dropped a few and lost the washers). The other item which Rhino-Rack needs to change is after drilling the holes and before installing the hardware, Rhino-Rack says to put butyl mastic around the holes for water tightness. That stuff makes a mesh and can get onto places you don't want. I used FlexSeal which came in a small push bottle. This way you are not buying a tube of butyl and caulk gun for such a small amount you would need. Rhino-Rack should list acceptable sealants (doesn't need to be by manufacturer name). There are a few videos on the internet on how to install the back-bone system and highly recommend you watch those before and while you are performing the install.

Overall easy install just follow the directions and watch YouTube. Great low profile look after installed.

Got a used box parts missing

Great rack. Perfect for my use

Hardware quality is lacking in size and quantity. Repeatedly working loose despite adding locktite to all connections. Expecting eventual failure of nylon brackets.