The BD Diesel LockOut controller for 2005 Dodge with the 48RE automatic transmission gives the driver control to disable fourth gear using the existing Tow/Haul button, useful for exhaust brake operation or heavy pulling. This hardware kit restores manual overdrive control so you can prevent unwanted upshifts during braking or on steep grades. It installs using existing controls and returns overdrive authority to the driver when needed.
BD Diesel LockOut Overdrive Disable - 2005 Dodge