Eaton medium duty 5 speed manual transmission. Was in 1993 ford f800 with Cummins engine. Only 96k on transmission. Installed a 6 speed overdrive unit. Nothing wrong with transmission,just wanted a higher top end but ring and pinion was already high as it could go for the rear end housing so it was easier to install 6 speed. Just needs a shift tower/stick and rear yoke for your application which can be ordered through Eaton . New similar transmission is 8k. Can send video of truck shifting through the gears before removal of this transmission.