First let me say that I am very grateful for the assistance I have received over the years from the members of Stovebolt. You guys have allowed a novice like me completely tear down every nut and bolt of a pickup and completely restore it to its original glory. I couldn't have done it without you.
I will say that occasionally the condescension in some replies is dripping - I can handle it (I KNOW I don't know things), but I would imagine some might be intimidated or put off by it.
Finally, with regard to the availability of overdrive in 1958 and 1959 trucks, the research I did specifically indicated OD was not available in 1958 and 1959 chevy pickups. CLEARLY, I may be wrong, but my source is "Chevrolet Pickups 1946-1972" by John Gunnell. On page 50, "Overdrive was no longer avaialble [in 1958], but all other transmissions previously offered were back again." On page 52, "Transmission offerings [in 1959] were the same as in 1958. Despite the new emphasis on economy, overdrive was not available, even though it had been a Chevrolet option up to 1957."
Thanks again.