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Old 07-27-2011, 12:36 PM   #3 (permalink)
Kodak
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Join Date: Feb 2011
Location: USA
Posts: 346

Canyon - '07 GMC Canyon 2wd regular cab
90 day: 24.95 mpg (US)
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From my understanding, it is to make it harder for air to get underneath the vehicle. I've seen some custom dams with it and some without. My plan is to include a small lip similar to stock design (just a lower dam).

Hey Ranger, if you build one will you post a little before/after thread?

I'm [very slowly] starting to finalize plans and collect materials for a dam. The more info the better.
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