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Old 01-11-2011, 03:22 PM   #132 (permalink)
JasonG
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Join Date: May 2009
Location: Charlotte NC / York SC
Posts: 728

05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
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Looks like it may act as a parachute.
The open area between the axle and the gas tank/ rear floor/ not sure what it is will act as an inlet for air and snow/mud.
Looks like you need to add a piece from the axle forward.

you are really getting it done on this car :thumbs:
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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