I guarantee that trucks going to need all 4 gas tanks I had a 1977 c20 454 best highway mileage I got was 8 mpgs that was the best it pulled like hell that was 8 mpgs highway with a camper pulling a 22 foot jet boat also 8mpgs with no camper not pulling anything 8mpg in the city 8 mpg on the highway that just what it got...lol
My dad bought a brand new 73 chev 1/2 ton 2 wheel drive. Ran it thru mud, cowshit, whatever. Never cleaned the hay out of the back so that rotted as fast as the rest. Had it for about 28 years and then had to scrap it. Just too rusted.
Americans commenting below on gas prices because they are starting to pay what we have been paying in England for a looonngg time, its ammusing. Dont worry American cars of this era are still the best, I know that.