Unfortunately, my Tundra in not the newer model. It only has a 4.7, 271 HP V8 engine in it. Its been a really really nice truck and it met my needs perfectly. It can handle 4x8 sheets or drywall and plywood flat on the bed and its been rock solid reliable. Aside from routine maintenace the only failure I've had in the 13 years is the left light bulb in bed light burned out and had to be replaced!
As for towing a trailer I have some experience, so I'm knowledgeable, but by no means an expert. I routinely pull my boat to and from the water (maybe 10 round trip) and I once pulled a very heavy trailer from Phoenix AZ to Eastern Long Island NY. I learned a lot about towing during my cross country. I was towing with a Durango with a V8 that had a rear end designed for towing. Unfortunately, I don't remember the trailer weight (we weighed it), but I was well within the capability of the Durango. We did fine on flat ground and gradual inclines, however going up some of those "hills" on the way to Flagstaff AZ were killer! The engine was screaming, my speed was dropping and my engine temp went way up. It was that experience I want to avoid. I had always thought I'd upgrade to a 2500 or 3500 if we got a TT, but I didn't count on the manufacturers increasing the towing capabilities as they have. So I asked you folks for your opinions on hr matter, because I knew I'd get honest no BS answers.
So, you folks have convinced me 100%, so I'm now looking for a diesel 3/4 or full ton tow vehicle and I'm slowly getting over the sticker shock!