[DonC]

Bartruff1:
I tow my ERA (2600 lbs) in a Serpent Express (1800 lbs) with my 04 Ford Ranger. 4L V6 207hp, 2 wheel drive.
I've towed the package about 15000 miles including Oregon to Ohio, Arizona, Nevada and Colorado. I've towed the package over the highest mountains in the country without so much as a hiccup. I've towed the package over the Rocky Mountains, the Siskiyou and the Oregon Blues I've never had to drop below 70 unless there was someone slower in front of me.
Your Tundra should pull your car and a Serpent Express without a problem.
DonC