I tried pulling a Apex 22QBS with 2011 Tacoma TRD with the factory tow package, weight distribution hitch and AirLifts. It would pull it but trips to the N.C. mountains or gusty headwinds pretty much removed the fun factor from camping. The truck was against the wall all the time. With headwinds I always had the gas pedal to the floor. Don't ask about the Blue Ridge Parkway in N.C. I always arrived stressed out.
My partner finally said get a bigger truck and she meant lots bigger. I now have a 2015 Ram 3500 Cummins. It is difficult to convey how much different the towing experience is. I am not saying you need a 3500 but I would want something stouter than the Tacoma.