3 speed manual and 2.76 gears with /6

If you already have a 2.76 and a 2.94 I would give it a try and see how it drives then if it needs a little more umph then switch in the 2.94. Whats it take to switch a 8 3/4 gear? maybe a half an hour? The slant sixes really have a lot of torque anyway and with the 3.09 first it should take off fine. I would lean towards the 2.94 myself. Oh, by the way, that's a cool truck.