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Old 04-06-2012, 08:08 AM   #1
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Fort Worth , Texas
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Heavy duty or regular package?

If I have two plugs (a rectangular and a round) at the rear of my 2003 Expedition 5.4, do I have the heavy duty towing package?

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Old 04-06-2012, 08:37 AM   #2
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The plug on your vehicle you're looking for will be round.

If it has seven female slots, you have the right configuration for an Airstream or any other rv trailer.
2013 25 FC FB (Twin)
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Old 04-06-2012, 08:53 AM   #3
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A round seven pin electrical plug is used on large trailers but does not necessarily mean that your Expedition has a tow package, it could have been added later. If your vehicle has a built in trailer brake controller; a 2" receiver hitch rather than a bumper hitch; and a transmission fluid cooler in front of the engine radiator, I would bet you have the tow package.
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