Fits front, left & right on the following Polaris UTV models: 1999-2001 Ranger Series 99 6x6 (A99RF50AA). Features stronger than OEM, 4140 chromoly steel axle bars. Greased with a moly based grease to provide superior joint lubrication. Fitted with neoprene CV boots for added wear and puncture resistance. Replaces OEM # 1380133. Set includes 2 axles.