NICHE CV Axle Part Number: MK1000978 Includes: Front Left CV Axle Assembly Front Right CV Axle Assembly Rear Left CV Axle Assembly Rear Right CV Axle Assembly This Part is known to be Compatible with the following vehicles: Yamaha Grizzly 660 4X4: 2003-2008 Yamaha Grizzly 660 Ducks Unlimited Edition 4X4: 2006 Yamaha Grizzly 660 Hunter Edition 4X4: 2003-2008 Yamaha Grizzly 660 Limited Edition 4X4: 2003-2004 Yamaha Grizzly 660 Outdoorsman Edition 4X4: 2006 Yamaha Grizzly 660 Special Edition 4X4: 2005-2006 Yamaha Grizzly 660 Wetlands Hunter Edition 4X4: 2003-2005 A brand new High-Strength CV Axle and what makes these Axles so unique is the internal joint design and reinforced shaft joint and inner components. The shafts and joints are constructed from Forged 4340 Chrome-Moly Steel. High-Strength Axles feature joint and shaft diameters that are a full 25% larger than the factory Axle while having a slightly improved articulation angle over stock. Because of this these Axles can safely handle a 2 Body / Suspension lift without any compromise. These Axles comes fully assembled including inner and outer joints and shaft pre-packed with high-performance grease.