M32 / M20 GEARBOX END CASE & BEARING UPGRADE KIT 3 X 62MM UPRATED BEARINGS. This kit is an upgrade for M32 / M20 gearboxes manufactured before 2011 by replacing the 3 bearings most prone to failure. This kit is also a direct replacement for the end case and bearings for M32 / M20 gearboxes […]