Join Date: Feb 2010
Location: Cartersville, GA
Re: Tonneau or Topper ... Which gives better mileage?
Look at NASCAR. They do not have long bodys or chopped backs, they have a slanted back. This is for better aerodynamics. While the air is already split by the cab it still requires power to pull that camper top through the air.
The best bet would be to have a sloping canopy or hard top from the top of the back of the cab all the way to the tailgate. The next best would be a flat cover.
'97 SCLB 4x4, 3.55, D60 w/ TrueTrac, 6637, Banks Techni-cooler, BTS Trans, Tru-Cool 4921 Trans Cooler, 1.0 exhaust housing, no ebv, 3" DP, Straight Exhaust, E-Fuel, TW tunes, International WP, 203*, Isspro Gauges