Yesterday I took pics of it setup in the daylight, I did post these in the what have you done to your square thread so I apologize if you saw them there, but I also know not everyone follows that thread.
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You can clearly see in the below pic that pinned together joint I was talking about.
Also you can see where the top bar fits to the leg it is not pinned nor held held on in any way. It slips together but there is nothing to keep it that way on the road, so there is potential for it to bounce up and off the front one could possibly be pulled off from wind if something that would catch the wind was strapped up there.
I've got a few possible solutions. I was going to pin it like the cross bars. I made it as far as standing in the bed of the truck drill in hand and ready to go, when I realized the hole would be visible in the leg when it's folded down. So I really wanted to drive with it up Thursday night just to see how it would go, so I ran bungies at each corner of the top bar down to the rail, so I wouldn't have to worry about it. I might make cables, to clip to it and the rail. Or shorten up some straps. Or short pieces of rope. I'm really not sure yet, but want the added security.
The rack alone is pretty quiet. Keep in mind my truck is running slightly enlarged single exhaust, 700R4 still with the 3.41 rear end and has the factory air cleaner with baffle still, so it's about as quiet as a square can get. If the windows are up I can hear some slight changes in sound over 50mph, it's one of those I can hear the change but a passenger wouldn't think anything of it I'm sure. Now if I crack my window at highway speeds I can hear it for sure, but it's still well with in the ok range for me.
Thanks again for the advice / following along. I'm not really sure when I'll need to use it but will post a pic of the racks first job.
I need to solve the spare tire storage issue next. I can't mount it underneath, because of the trailer hitch and dump bed kit. I thought about doing a front mount at one point, but now that I've got a good set of fog lights, that's out. So I was think of a possible bed cover, but now that I have the rail system I don't see that being practical, so I might get one of those bed bags, for when I need to keep stuff dry, but that leaves some places in the bed. Mainly the LR behind the wheel well. So I'll fab up a bracket to fit in there that the spare can bolt to.
Maybe it's time I start a build thread. I think of this truck more as a driver than a builder, but I keep doing stuff lol.