i gotcha now. some air start trucks (old autocars)had a manual backup air tank with a simple ball valve for emergency starts. i figure you got plenty of onboard air, and i think 2 stroke detroits start alittle easier than 4 cycles during cold weather, but that sure ain't saying much. i also considered you are only turning 4 cylinders instead of the 8 the starter is intended for, so it ought to spin the entire truck, not just the starter. it's also good for scaring the neighbors cat away. i haveseen air starters on e.m.d.'s and i know they are usually tough as nails.