1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 17Get this manual
Gearcase Gear Ratio Lubricant Capacity Shift Rod Height, Models Shift Rod Height, Models Shift Rod Height, Models
12:32 (0.375)
OMC Hi- Vis Gearcase Lubricant
22 flo oz(650 ml) 15-293232 in(404 0,8 mm) 20-293232 in (531 0,8 mm) 23 -13 3232 in(594 0,8 mm)