1966 Chevy Muncie 4 speed transmission. Appears to have been rebuilt before it was put on a shelf. Very nice gears and sychronizers, no chipped teeth. Main case # 3885010 , side cover # 3884685 , tail case # 3857584 . Date code P0628 (built June 28th). Very nice trans ready to install. This transmission is for the Chevrolet cars because the speedometer gear is on the passenger side. Has a couple small spots externally that have light surface rust from sitting in a storage container, but internals are clean. Contact with any questions.