Dub, when I ordered mine I thought that there was a place on the Energy Suspension website that allowed you to pick the color. I could be totally off base though.
Oh, oh, just hit ES's website and at the bottom of this page: http://www.energysuspension.com/pages/tableco.html it says "For Black Product - use color code "G" after the part number" "For Red Product - use color code "R" after the part number.
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