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Old 12-08-2014, 10:41 AM   #11 (permalink)
aardvarcus
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Join Date: Apr 2012
Location: Evensville, TN
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Deep Blue - '94 GMC Suburban K2500 SLE
90 day: 23.75 mpg (US)

Griffin (T4R) - '99 Toyota 4Runner SR5
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Ecky,

I use PowerPoint 2010 to do my overlays, put both pictures on one slide and drag the AST-II over the picture of the car. The AST-II will go semitransparent and you can see them overlaid quite nicely. Use the built in scale and rotate tools to make them match up.
Your car is already fairly boat-tailed in the back, making a trailer that continues the boat tail to reduce drag will result in a fairly small trailer.

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Ecky (12-08-2014)