[rechinca]

Travis my only question about is definitely being a Saginaw or not would go back to the RPO codes then. According to the pic I took of the GM Heritage truck spec page for 1972 said the 3-speed manual behind a 350 is RPO ZW4. The page from the article I linked said that RPO ZW4 was a Muncie 330. I think that regardless of what the SPID may show, the RPO for a trans in the truck line would be the same across all models. With that, he probably had a Muncie 330 as the standard 3-speed behind the 350.