Which Proven Industries coupler lock fits a 2021 21NE? I sent an email to them and they responded to go with the 2178-A model which is a squareish model, but the locks I seen other Escapee's use look more like the cylinderic type 2178. The cylinderic 2178 model looks more substantial compared to the 2178-A model and of course I want the strongest lock available.
Thank You
Thank You