Toyota tumdra owners

Tundras have a lower payload rating than most other 1/2 tons, I believe, due to the way they're built - heavier framing under the front, to support the engine, somewhat lighter framing under the passenger compartment, and c-channel framing under the bed. That of course is where the weight of any 5th wheel goes - on the lightest-built part of the truck.

I don't think I'd recommend towing any 5th wheel with a Tundra. JMHO. Otherwise, it's a great tow vehicle.