Charlie, it looks sharp. Remember: your best strategy for saving gas is to curb enthusiasm. My ScanGauge paid for itself real fast on my 4.7L 4WD Tundra. Sticker says 14/17 but I get 17 +/-1 commuting (16 Winter & 18 Summer in central MA), I've repeated 22 highway and typically see 16-18 pulling a 3500# camper (Scamp 5th wheel). All that with 3.92 diffs (16" wheels) so you may have some MPG upside if you are willing to adjust driving habits.
BTW, I started a new thread today:
http://ecomodder.com/forum/showthrea...kup-12155.html
I don't want to bend these project threads but would like to discuss pickup aerodynamics more generally.
Cheers
KB