SDI Transmission Clutch Alignment Tool Polaris RZR S 900 / 1000 / RZR XP 1000 / General The SDI alignment tool enables precise positioning of the clutches for optimal belt performance. Fast and easy clutch shaft alignment verification it features two aluminum crossmembers and appropriate adapters for the clutch shafts. Features: Snugly fits over transmission shaft and provides a smooth surface for the SDI Alignment Bars to fit over and verify proper positioning