All Balls Racing 89-92 Polaris Big Boss 250 4x6 Ball Joint Kit LowerIncludes a POM M90 bearing cup to isolate the ball end from the steel housing for longer lifeThis Part Fits: Year Make Model Submodel 1994 1995 Polaris 300 2x4 Base 1994 1995 Polaris 300 4x4 Base 1994 1995 Polaris 400L 2x4 Base 1994 Polaris 400L 4x4 Base 2017 2019 Polaris ACE 500 Base 2016 2017 Polaris ACE 570 Base 2017 Polaris ACE 570 SP Base 1989 1992 Polaris Big Boss 250 4x6 Base 1991 1993 Polaris Big Boss 250 6x6 Base 1994 Polaris Big Boss 300 6x6