Originally Posted by Evanrude
I'm glad this came up. This is one of the main reasons I haven't ordered one yet. I can't seem to get an answer on the shape of them. I've seen where they have angled corners as well as a square corner. I want the square shape as I plan on hauling my quad with the extender. Hopefully someone can post pics and help us out here. Please note the brand and part number when posting pics so we know what's what.
The ones that have the angled corners can flip back into the bed when you aren't using them. They have to be angled in order to clear the wheel wells inside the bed. There's are lots out there with more square corners but I think they have to be completely removed from the truck when not in use.