Newer 5ers, Slider Hitch Required For Short Beds?

Some front caps, even though they have rounded corners, will slope forward from the overhang. They will tow and turn fine with sufficient clearance. When backing sharp up an incline or rough terrain, the trailer will lean forward and take out the rear window from a high point on the cab. I've seen these exact results from a Montana High Country and an Andersen hitch.