I have a 2006 Tacoma Double Cab 4x4 Short Bed, automatic V6 with Tow Package and with two adults I tow a Keystone Passport 2650BH 26ft travel trailer. The trailer weighs 4960lbs unloaded and between 5600 & 5800 lbs loaded. I use an Equal-I-zer Brand 4 point weight distribution hitch with built in sway control and a Prodigy P2 brake controller. While this is quite a load for the Tacoma at no time does it feel unsafe, sway or bounce. I tow in 4th gear and at 60 mph I'm turning 2500 rpm. At inclines I drop into 3rd gear and turn 3000 rpm. My fuel mileage takes a big hit and I get between 10.5 and 11.75 mpg depending on inclines and road conditions. Not the ideal tow vehicle for a trailer this size, but it does an OK job. Just take your time and don't be in a hurry! The Tacoma is a beast!