I have to agree with Troutslayer. We tow our FW, Eagle SuperLite HT 27.5 RLS with a 2012 GMC 2500HD D/A combo and while it has no trouble pulling the FW, we do know it's there, especially when I look out the rear view mirror, LOL. We also tag a boat along behind the FW, a Crestliner Super Hawk 1900 and while the 2500HD pulls it just fine, you do know it's there. We can accelerate from 40 mph up a 6-7 % grade to about 65 at the crest with this combo but it does have to work a bit.
2012 GMC 2500HD D/A Crewcab
2012 Jayco Eagle SuperLite HT 26.5 RLS
2009 Crestliner Superhawk 1900
2013 Polaris Sportsman 550 EXP
2008 Polaris Sportsman 700 X2