Bought the V10/gas December 2001, have about 25k miles, so far zero problems. However, didn't have problems with the Suburban until 50k, then the nickel and dime torture. Believe I tow about the same weight as your talking and its a piece of cake - even at 110+ temps crossing the desert with both A/C's at max! Like it a lot more than the Suburban primarily because of the extra room inside. Downside - empty it rides like a tank and turning radius is a problem for parking at the mall etc. Mileage stated above sounds about right.