Can you get me the exact dimensions of the sportsman? I'm days away from getting one, but I think it's going to be a super, super tight fit in the back of my avalanche. I can clear 48" wide, and 20" tall - but only in the center of the bed. The top of the sides has a lip that sticks a few inches out to the center
That lip is at 18" high, and extends to the center for 5". See attached picture