well i am going with it is a c-10. with the price of gas going no where but up. i would keep the 25put in an rv cam. go with a lower gear about 3.55-3.73 and a 5 speed out of a later
c-10. that way you have the low gears to play with and the overdrive to be able to aford to drive it.
that is what i am doing with my 72 short bed.
