This 20 Series gear set is a power take off (PTU) gear kit built for the 20 Series line. It features a 2″ x 1″ gear configuration with a 15-spline fit, matching the dimensions and spline count of the original PTU gearing it replaces.Interchanges:312-2920-240WA20-20-0154Features20 Series gear set for Power Take Off (PTU) units2″ x 1″ gear dimensions15-spline fitTech SpecsGear dimensions: 2″ x 1″Spline count: 15