TODAY is a Great Day to visit our Store and order the parts you need for your truck ! ! !
I'm sure no one on here is going to like to hear this but if you want better fuel economy get a truck with the 6.2 diesel in it. I have a 1984 K20 with the SM465 and 4.10 gears and it gets about 20-21 in town. Its slower than anything I have ever driven tough.
I've just clocked up 61k work miles in 15 months so the engine is nice and loose. I'm getting between 55 & 59 mpg at 70-80mph. 2.2Diesel oh its a Honda Accord!!