👍 INCLUSION & COMPATIBILITY — This comes with Marine Tech Tools Alpha 1 Drive Shaft Adapter 91-56775T. This tool is used to provide a wrench surface to remove or torque the pinion nut without damaging the splines. Compatible Drive Units and Outboards: MC-I, R-MR, Alpha One, Alpha One/Gen II. 👍 TORQUING PINION GEAR NUT MADE EASY — You don't need to go to a dealer or marine mechanic to get the job done. This simple DIY tool slides over the driveshaft so the pinion gear nut can be removed or torqued. 👍 BUILT TO LAST — This tool is made of nickel plated steel that provides a combination of corrosion and wear resistance. 👍 BUILT & DEVELOPED WITH A MISSION — We are on a mission to support boat owners and mechanics in their boating lifestyle through the tools we create. 👍 LIFETIME WARRANTY — As a small business located in Charleston, South Carolina, USA, we take pride in all our tools. They are all built to last, backed with a lifetime warranty. Comprehensive Compatibility - The Marine Tech Tools Alpha 1 Drive Shaft Adapter 91-56775T provides professional solutions to your maintenance and repair needs. It is a reliable tool specifically designed to work and fit with a variety of marine tools like MC-I, R-MR, Alpha One/Gen II Drive Units & Outboards, Mercury/Mariner 3 & 4 cylinder, 70-125hp, 25" Two-Stroke, Carb models. Versatile Tool - This Alpha 1 Drive Shaft Adapter 91-5675T is also a great alternative to Mercury 91-56775T, Sierra 18-9854, GLM 90220, and Mallory 9-79809. Hassle-free Pinion Nut Torquing - this user-friendly shaft adapter from Marine Tech saves time and money. Simply slide over the driveshaft so the pinion gear nut can be quickly removed or torqued without damaging the spline. Built for Durability - Marine Tech products are engineered for long-lasting performance as they were constructed from high-quality nickel-plated steel and offer exceptional corrosion and wear resistance. _____________________________ drive shaft adapter tools for alpha one gen 2 drive marine tech tools tech marine shaft adapter 56775t alpha 1 drive shaft 91-56775t mercury drive shaft holder 91-56775t marine tech tools drive shaft holder