A friend of mine has that model of truck, 3.9L, 5spd tranny. I would consider the tranny the single best part of that truck. You know the old manual school buses and the transmission whine they would emit? That's what comes out of these trucks. The tranny has MASSIVE gears in it that love to whine. It's absolutely fantastic for those of use who like the basic, visceral automotive experience. Also, it just sounds like durability!!! Love them.