Description of Alignment Gimbal Bearing Mercruiser 91 805475A1
Tool set includes: Alignment Tool, Gimbal Bearing Driver, Seal Driver, Bellow Ring Driver, Hinge Pin Tool, Bellows Expander Tool, and Eye Bolt. Compatible For Mercury part # 91-805475A1. The alignment tool is a single solid piece, not 2 pieces that are screwed together. Check others on eBay for purchasing, these are substandard and will wiggle and move when you are trying to perform the alignment. The Drive Alignment is suppose to be checked annually. Every time you have the drive off you should check the alignment or if you have pulled or adjusted the engine.