2006-2010 Duramax LBZ/LMM Billet Flex Plate (A1-BFP-2)This replaces the factory flywheel flex plate with a improved billet steel one piece design and eliminates the heavy cast iron and the weak stamped steel flex plate. This is a must with the high torque in conjunction with a better designed torque converter that can transfer the torque with no slip. The flex plate is bolted to the crankshaft and then the converter is bolted to flex plate. The torque from the motor is transferred to the flex plate, then