We have ordered the 2 5/16 coupler for our trailer when we take delivery in May. The upgrade is not an "option" though. We had to pay the cost of them purchasing and installing the larger coupler as a service item. We'll end up with both the original 2" coupler as well as the 2 5/16" coupler when we drive away. Hey, we paid for it (the original 2" coupler), we might as well take it with us. Not sure what we'll do with it though. Might just give it to someone in the Oliver world who needs it for whatever reason.