Some of our old ones are loose, all our new trailers are fixed, but the new trailers have holes on either side, so if they weren't fixed it could be used off side, but if you take the whole thing out, the lift assist thingy won't clear the DOT bumper, so even if you're big and strong, you're still stuck with it in the center.
Hey GT, I got to bobtail the Cascadia today, holy cow that thing moves, I can really feel the power of the dark side.