I pull our X20E with my 2012 Tacoma fine. But I wouldn't go much larger and yours is larger. I drove from Ottawa Ontario to Nova Scotia last year and despite some fairly steep climbs, the Taco may have screamed a bit on the big hills, but nothing I would consider to be dangerous to the Engine or My Family. Comes down to your comfort level and with my 10K Equalizer Hitch and Prodigy 3 Controller, I'm comfortable. Would I like more HP's under the hood, Yes, Do I need more HP's under the hood, not really.
Wayne, Kim, Mallory & Abby the Dog
2013 - Jayco Jayfeather - X20E
2012 - Toyota Tacoma DBLCB Sr5 with towing package
Equalizer 10k WD, Prodigy P3 Controller, TST TPMS
2012 - Jayco Sport 10 Popup - Traded