GM Hydra Matic 4 speed transmission. This one has been converted over to a B&M Hydro Stick. (Pretty much a clutchless 4speed) Used in the 1960's for drag racing. This one was pulled from a Chevy Nomad in 1970, because it shifted too hard and spilled the groceries. It has been sitting ever since. Perfect for a gasser or hot rod. I will be at the Hot Rod Reunion Oct 17-19 in Bakersfield.