Mercury - Quicksilver Hinge Pin Tool Installation & Removal MerCruiser Sterndrives 78310. Overview. If you've ever wrestled with a hinge pin on a MerCruiser drive, you know the right tool makes all the difference. The Mercury Marine 78310 Quicksilver Hinge Pin Installation and Removal Tool is designed specifically for all MerCruiser sterndrives, giving you the precision and leverage you need to do the job cleanly and safely. It's a shop-quality tool built to Mercury's specifications, helping you