971411 Thrust washer, outer transmission bearing. left

This MCS thrust washer is designed for the outer transmission bearing on the left side of the countershaft. It plays a vital role in managing end-play and ensuring the countershaft remains properly positioned within the transmission case during operation. This washer fits 1935 to 1973 45" Flathead models and is a direct replacement for OEM 35910-33 and 2308-33. Maintaining correct tolerances in the gearbox is essential for smooth shifting and long-term durability. When you are shimming a vintage transmission, having the correct thrust washers on hand is the only way to get the job done right and avoid internal damage.