1) Engine braking, with an exhaust brake and a manual you can slow yourself down in a hurry. They are also cool for city driving in gridlock, since you can keep a constant gap in front of you with only the accelerator pedal to speed you up and slow you down.
2) Durability, I am hard on stuff, and I know I am going to have a hard time screwing up a New Venture transmission, where as I know I could scatter an automatic. We blow up the autos in our powerstrokes at work about every 60K.
3) Coolness factor, there isn’t much better than all the racket a truck makes when you are rowing up or down the gears.
4) Cost, it is going to cost me less from the factory, and it is going to cost me less to keep it on the road.
5) Man factor, if you can’t drive a manual proficiently, you need to master that skill.
These are all reasons why when I order up an 04. 5 it will have the six speed