This is a super old post but figured why not, Cleans racing transmissions was owned by my dad (Jim Martin aka Clean) When this was posted he had passed away several years earlier. He would stamp and sticker everyone of his builds. That transmission if still working would be worth a lot of money as you can’t get them and anyone who knows anything about the classic car, street rod or drag racing scene in Southern California knew who my dad was. He was in several car clubs, the spinners, so cal nomad, and several race clubs. If you were in ca in the 1970-2002 you would have seen his race car the 1956 Chevy nomad known as the Low Roller.