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It was already on the trailer when I bought it. It is the first one that I have had on a trailer and is a big help. I will call and find out if you where you can get one and who make's the system that I have and let you know. Ed
Also I have took a 2x4 and cut it to fit between the actuator and it works, just a little aggravating to get out put it in then take it out when you start going again.
Here is Ford's official statement and bulletin for dealers...
2005 F-Series Super Duty Factory Trailer Brake Controller Tips:
The Towcommand integrated trailer brake controller cannot be installed on a vehicle that was not originally equiped with this option. Braodcast Message 3158.
Diagnosis procedures for the Towcommand system is in the workshop manual, section 206-10, Auxiliary Brake System. All voltage tests sould be made with the controller at the maximum gain setting of 10.0. Brake controller output voltage increases with vehicle speed. In park with brakes fully applied the output voltage will only be 1-3 volts. Full voltage is only available above 15 MPH. The Towcommand system works in both forward and reverse. Broadcast Message 3286.
When installing an aftermarket controller on trucks equiped with a factory installed controller, the factory one must be left intact and the aftermarket controller installed separately. Broadcast Message 3332.
The Towcommand system is ment to only work with electric trailer brakes and not surge or electric over hydraulic brake systems. Broadcast Message 3179.