This is exactly the math I was talking about. I still daily drive a big SUV because the cost of replacing it with a car is so much higher than fuel savings.
I have a turbo'd 3B in my 60, and the last 2 tanks of fuel I have gottem 17MPG. My driving is a bit of a mix of highway and idling through town. My commute was 50miles round trip.
I have 4.11 gearing, 285s, and a 5speed, and I leave all my spare parts, tools, camping gear in the truck all the...