Superior issue to double check gear ratios. I had been figuring the burden at 430 lbs ea, but it's possible which was on the list of Offshore models (twenty five"), but don't know what one other diff's could well be. In 1975 and 1976 Mercury also created the Path Twister https://alexisnactz.blogerus.com/56533148/buy-mercury-outboards-online-fundamentals-explained