I am going to be purchasing a new SEI upper and lower outdrive, I know that the gear ratio is 1.84:1 I am almost positive the prop rotation is the standard clockwise rotation but want to be 100%. The boat is five hours away but I do have all serial numbers, my question is their a way to tell the prop rotation from the stern drive serial number. The boat is a 1986 FourWinns 170 Horizon, Alpha One Generation One........ Thanks
