FITTING OF THIS PRODUCT: According to the data provided by the manufacturer, this article is valid for the following brands, models and years: POLARIS L 4x4 W8139 1 Mid Axle 1 350: 1992-1993 POLARIS L Sport W8540 Rear 400: 1994-1995 POLARIS L Trail Boss 4 x 4 W8139 Mid Axle 1 350: 1990-1991 POLARIS L Trail Boss/Sportsman 4 x 4 C/S Mid Axle 1 350: (No defined years) POLARIS L4x4W81391MidAxle1 350: 1992-1993 POLARIS Lsport W8540Rear 400: 1994-1995 POLARIS Ltrail Boss 4x4W8139MidAxle1 350: 1990-1991