This pair of CV axles will fit front left & right on the Yamaha Grizzly 600 4x4 1999-2001 * Fitted with neoprene CV boots for added wear and puncture resistance * Greased with a moly based grease to provide superior joint lubrication * Compressed Length - 487 mm (both), inobard Spline Count - 21 (both), outboard Spline Count - 27 (both).