Boss Bearing 41-3566B Lower Ball Joint Kit Yamaha YFM660 Grizzly 2002-2008

The Yamaha Grizzly 660 earned its legendary status as one of the most capable and dependable four wheel drive ATVs ever produced — and the Boss Bearing 41-3566B lower ball joint kit is built to keep it living up to that reputation. Precision-engineered to meet or exceed OEM specifications for a direct drop-in fit on the YFM660 Grizzly from 2002 through 2008, this kit restores stable, confident front suspension performance and eliminates the vague steering, uneven tire wear, and loose front end feel that worn lower ball joints cause. Whether you're maintaining a hard-working Grizzly 660 that still has years of trail and utility duty ahead of it or refreshing a machine that has earned its rest, the 41-3566B is the reliable, long-lasting lower ball joint solution your Yamaha deserves.