On Sat, 08 Dec 2007 11:25:16 -0500, Gene Kearns
wrote:

Truck 5500#
His Boat 5100# (dry)
Trailer 1700#
_____________

Yields 12300#

Junk and Fuel probably close to 1000#

What did I do wrong?

Nothing wrong using your numbers but my truck weighs about 5000
including rear cap and two passengers. By reducing junk and fuel a
bit more you are well within the ratings of a Tundra.