I'll have to check mine. Its a mid-70s 904. Is it stamped on the lever, the ratio? How hard are they to change? I think the transmission will end up being my weak link, but for now, its all I have and can afford. Hopefully it suprises me though. Is there anything else I can do to it to help it last, and perform better? I may go pick it up today just to take the pan off and look at the lever.