The stock transmission is designed to handle the output of the stock engine, but not much more. Increase the durability of your drivetrain with a BD transmission. All transmissions come with BD’s heavy duty transmission pan and most packages come bundled with our auxiliary transmission filter kit for added protection! Comes with Billet Input Shaft designed to withstand rapid acceleration and high torque. The Perfect combination for those installing the ProForce 3 or Hi5 torque converter.