Description Fits Year Make Model Engine 1990-2003 Ford F-Series 7.3L Powerstroke 1990-2003 Dodge Ram 5.9L Cummins 1994-2005 GMC/Chevrolet 6.5L Duramax Prevent high temperatures caused by torque converter slippage in your automatic transmission with BD's Torqloc transmission controller. Only 10% to 80% of the retarding force is transferred through the fluid coupling of most torque converters; BD's autoloc is 100%. This AutoLoc commands the lock-up clutch of the torque converter to stay engaged when the Exhaust Brake is activated. Part Number: 1030395 Features Maintains lock-up when the exhaust brake is activated Ensuring 100% of the retarding force is being transferred in 3rd and 4th gears Prevents slippage and subsequent high oil temperatures TorqLoc with its three position switch allows for manual command of the lock-up as well as AutoLoc and stock operations