identify transmission help

[chuckstlou]

here is what numbers i found

GM 16 3741458
GM 1 3845122
E 115
GM 2 6174 3780570

Thanks for help
looking to see application chart to what it fits ??

[Aerovette]

stick or auto?

[chuckstlou]

stick

someone saying Saginaw 3 speed 1957-1962

[Echidna1958]

Definitely 3-speed, low/reverse slider, Saginaw/long tail with shifter mount. Have one sitting on a stand, as we speak. Referring to the 384...trans.