I came by a 4 speed and I don't know what it is. It is a 4-speed that has the usual 4 ears to bolt to the bellhousing and another at the top so it has 5 bolts to attach to bellhousing. It also has a large piece coming down from the tailshaft in front of mount pad. This looks like a piece that a torque arm might bolt to that goes back to the rearend. It has 2-12-85 and the numbers 14075800 on the case. All three shift arms are on the cover and the input shaft has 14 teeth. It says GM on the case and tail housing case. I wish I had the ability to post a picture. Roy