For use with Banks Brake. (Vehicles with automatic transmissions) Banks electronic braking device automatically activates when conditions call for braking. SmartLock locks the torque converter and simultaneously raises transmission - line pressure, to smoothly reduce vehicle speed. Besides saving wear - and - tear on your service brakes, SmartLock prolongs automatic transmission durability by increasing its holding capacity, eliminating excessive clutch slippage, and cooling transmission - fluid temperatures. Includes Integrated electronic SmartLock module Wire loom Mounting hardware.SmartLock Trans Brake, electronic transmission brake for use with 1998.5 - 2002 Dodge 5.9L