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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.

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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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