I just measured inside to inside of bed of 2002 Toyota Tacoma from left side to right side and it measures 57 1/2" and I have 1 1/2" to spare on the connecting tube before top tubes touch each other leading me to say the minimum bed width from left to right is 56". Hope that helps!
Yes it can, I have my smittybilt tent mounted to it.
They are are adjustable.I have a full size truck, and the bed is 58 inches.I put the rack on, and the center piece was inserted and adjustable, then locked in place with a set screw on each side. Over 4 feet with, and adjustable in where you want to set them in length according to the bed of your truck.
It should I have a 2011 Tacoma and it fits fine