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Old 07-08-2013, 09:49 AM   #8 (permalink)
Join Date: Dec 2011
Location: Canton CT
Posts: 442
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on my 88 ranger I bolted a section of plywood across the last 4 feet of the bed and noticed a 1 mpg improvement I let it hang over the tailgate about six inches and rounded off the back corners, seemed to help in the cruise speed range quite a bit. cheap to try , just 1/2 inch sheet plywodd
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