[elhigh]

If the Corvette can deliver 24-26mpg ticking over in its top gear, 1400rpm or so at 60mph, then how could my truck do with a taller top gear?

I know I can't overdrive it like the 'Vette - it'd take two more trucks like mine to equal that kind of torque. But I just know there's torque enough to drive a taller gear. It pulls smoothly from 25mph in top, surely if I had another gear I could find a few more mpg. Add aeromods to lighten the at-speed load, and it'd work a treat.