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Tommy, for the core square bars I've seen "square" U-bolts that should do the trick, but the wing shaped bars are tricky. Some I've seen have channels that you can put a nut thru, which would allow for use of a L-bracket in mounting the awning similar to what I did in the video.

James Hardy appreciate the feedback, glad the video helped

Eric Burke it’s been fine, still on the Jeep now and an actually looking to use this same solution to mount a fox wing 270 degree awning to the other side as well...

Charles Moman So how is the awning doing spaced like that?? Any problems? im am wanting to do the same thing!!...Please respond

With the added supports on each end, I feel it is VERY safe and rock solid.

I had a fabricator make me two 4"x14" heavy aluminum sections. I bolted them near both ends. So now the aluminum awning is supported at four points. It's perfect.

Charles Moman ok cool, i called ARB and Scott (Manager) told me to buy a 8ft 2x2 steel square stock and mount to back of awning for support. Then mount as i usually would, said it will be perfectly fine now. i could go over the 27.5 by another 15 inches if i wanted. but mine will only go over by like 7 or 8 inches

Sounds great. I considered a long bar like that. Look on my TH-cam channel and you will see how I ended up doing it. Blessings!

So those Yakima crossbars are actually takeoffs from a 2002 Ford Explorer SportTrac I used to have, they were the right size for it. I kept them for the Grand Cherokee because they worked for the awning and I also use a Yakima snowboard rack with them... The other nice thing I like about the awning mounting that far out is that when you attach the room to the awning, its flush with the doors...

Actually, I was lucky enough to find L brackets that had holes spaced the same as the channels on the awning... Just measure the gap beforehand...

The Yakima round bars are 1", so i went to the next size larger U-bolt (maybe 1.25"), and the cross plates were just the ones that came with them...so parts were a total of 4 U-bolts (with cross plates and nuts), 4 L-brackets, and extra washers, the rest of the bolts came with the awning...

So I seem to remember the awning came with six m6 bolts, and I use a total of eight, so I did grab the extras at the same local hardware store that I bought the u-bolts and L-brackets at, same thing with the washers all the way around...

+Kaipo Fitisemanu Fair question but I don't think so... I believe there is no chance the weight of the awning would compromise them, and it would take a fair bit of sustained force to bend them. In terms of further structural rigidity, I feel like maybe I've seen some larger brackets that have a diagonal brace from the top awning bolt to the far (from the awning) U bolt, but I don't know if those can be had off the shelf, you might have to fabricate them. One other thought was to add a 3rd U-bolt on each crossbar between the two existing ones, but you'd need to drill an extra hole in the l-bracket and that might just be overkill....

+dizkoteck So the Curt roof rack in the video was actually attached to the same Yakima crossbars as the awning. During a recent trail ride to Flagpole Knob, the Curt roof rack mounts warped and loosened to the point where the rack was sliding around on the crossbars, but the awning stayed put. I wound up driving the 2 hours back home on the interstate with the roof rack, spare tire, and Hi-Lift in my back seat, and upon returning home, the awning mount was still as secure as when I first put it on. In short, I have no durability concerns as of yet with my mounting solution, and it should stand by itself just fine...

+Mike Powers It looks like you can attach more U bolts on the rack to the bars too