I recently removed this transmission from a 58 car that is being converted back to original powerglide. The case is cast #3885010 with a build date of P7D12. It has a single groove input and a 26 spline output.The tailstock is cast #3857584. Lightly stamped on side of main case is # S117278. Attached is a Hurst Competition Plus shifter with a welded on short, straight correct looking handle with small white ball. The trans shifted real nice prior to removal and I suspect it may have been gone through when the initial conversion took place it in the early 70"s. Since that time the last 2 owners have put less than 15,000 miles on the car. I have the complete set-up and don't want it or need it. It would be cool if this car is out there so they could be re-united.