most times the TT is not scaled to put anything of any weight on the rear bumper. They are just tube carriers for the sewer hook ups and not very sturdy. You would need to connect something like this to the frame members which will be heavier than current metals. Also you could run into trouble as it could be construed to be tripple tow! I think you would be better off to try and fabricfate a cross carrier to fit into the tow receiver and then have a trailer hitch added to it. Look at one of those hydralic ones that goes on an rv for an example. Another thinkf is that the TT frames are not designed for the additional load.