Could the four bolt pattern on the rear bumper be used for a lightweight hitch? I'd love to get rid of that clunky class 3 hitch I have hanging down under the rear bumper. Besides who am I kidding. The 3FE won't be towing anything near the axle limit anyway but I would like to tow my little 4X8 trailer that weighs in at 400 Ibs unloaded. Camping gear and the like. If the 4 bolt pattern is not for a bolt on hitch what is it for?