Pair (2) Front CV Axle Shaft Assembly Compatible with Yamaha Big Bear 350 YFM350FW 4x4 1989-1997, Kodiak 400 YFM400FW 4x4 1993-1998, Timberwolf 250 YFB250FW 4x4, Replace# 3HN2510H0000. [Function]: CV axles serve as the final link between the engine and the wheels, transferring power from the vehicle's transmission and differential to the wheels to drive the vehicle forward.