A piece of socket from is sold here Peerless Tecumseh If you are not sure whether this part fits your gearbox, just write an email. If you have problems identifying your transmission, I would be happy to help you. I'll check it and tell you afterwards Notice. Original article number is 780064 inside 19.05mm outside 22.30mm Height 12.70 More Peerless Tecumseh Spare parts on request.
