Does anyone know the part number of the idler/tension pulley that's under the alternator on the passenger side front of the motor. Mine decided to eat its self and I need to replace the whole assembly.
Go with the super duty tensioner mod. It requires you to get a new belt also. The benefit is the sd has two idlers on the tensioner, so the tensioner arm will not have so much strain on it and pull off track as it gets older. Best i can explain it.