I have a 2008 Tundra with the 5.7. I pull a 30 ft. bumper tow with it. The trailer is an ultralight, 4900 lbs. empty, and I use an equalizer hitch. I have never towed a 5th wheel, but I have no complaints about this set up. The Toyota pulls it smoothly without much stress, the trailer tracks well, and I can honestly say I have forgot to hook up the electric one time, and I did not even realize it, the brakes on the Toyota handled it fine. Before the Toyota, I had a 2006 F150 5.4 liter, and before that a 2004 Dodge 1500 with Hemi. The Toyota is hands down the best tow vehicle out of the three.
