Johnson Evinrude Lower Unit RH Gear Case Leg Sterndrive \n \nJohnson Evinrude 135-150-155-175-185-200-225-235-250 Lower Unit RH Gearcase Leg \n \nBrand: Sterndrive \nColor: All Lower units come with BLACK PRIMER NOW \nCondition: New \nManufacturer PN: 90306000 \n \nDESCRIPTION: \n- Lower unit \n- Fit MOST BUT MAYBE NOT ALL engine V6 from 135 to 225HP, years 1979 and UP. \n- NEW aftermarket LOWER UNIT. \n \nIMPORTANT NOTE ABOUT DRIVESHAFT: \nThis lower unit DOES NOT include the upper driveshaft and the water pump. \n- You will use your lower unit upper driveshaft, water pump, and shift rod. \n- If your old unit has a one piece driveshaft (most pre 1991) you will need to purchase an upper driveshaft. \n- This lower unit uses the newer style stubshaft (upper driveshaft) with a clip. If your upper shaft is not the newer style you will need to replace the upper driveshaft with the newer style mostly after 1992. \n- In older models (most pre 1991) you may need to change the Thrust bearing to the new style \n \nLOWER UNIT INFO: \n- Fits 20" or 25" midsections. \n- Gear ratio: 1.83:1 \n- 15 spline propeller shaft for 15 spline propellers for large propellers above 14" diameter.