👍 INCLUSION & COMPATIBILITY — This comes with Marine Tech Tools Mercury Drive Shaft Adapter 91-889958T Replacement. It provides a wrench surface to turn the lower unit vertical drive shaft. 👍 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 and holds the driveshaft during pinion nut removal or torquing. 👍 BUILT TO LAST — This spline tool is nickel-plated steel that combines corrosion and wear resistance. It's a perfect addition to your mechanic toolkit. 👍 BUILT & DEVELOPED WITH A MISSION — We are on a mission to support boat owners and mechanics in their boating lifestyle through the boat tools we create. 👍 LIFETIME WARRANTY — As a small business located in Charleston, South Carolina, USA, we take pride in all our built-to-last marine tools. Complete & Compatible — Includes the Marine Tech Tools Mercury Drive Shaft Adapter 91-889958T Replacement, designed to fit all Mercury 22mm splined shafts. This marine tool provides a secure wrench surface, allowing you to easily turn, hold, or stabilize the lower unit vertical drive shaft during maintenance, repairs, or part replacements. Effortless Pinion Gear Nut Torquing — Take control of your maintenance with this DIY-friendly marine tool that easily slides over and securely holds the driveshaft. It ensures stable support for pinion nut removal or precise torquing without needing external assistance. Durable & Long-Lasting — Crafted from nickel-plated steel, this spline tool is designed for maximum corrosion and wear resistance. It’s built to withstand tough conditions, making it an essential, reliable addition to your boat tool kit for years of dependable use. Crafted with Purpose — We are dedicated to supporting boat owners and mechanics by creating high-quality boat tools that enhance their boating lifestyle. Each product is carefully designed to provide reliable performance, making maintenance simpler and helping you spend more time on the water. _____________________________________ marine tech tools drive shaft holder driveshaft adapter marine tech tech marine 91-889958t drive shaft holder drive shaft adapter drive shaft drive shaft nut tool mercury drive shaft tool