3.23's here. At 70mph, I am turning 1800rpm. I know it's acurate because I did the same thing Tim did, check it will a GPS. At 80mph I am at 2200rpm. 25.8mpg FTW. BUT, I am making a pretty big jump pretty soon. Going from a 3.23 to a 4.30. We will see how long it takes before I yank them out and put the stock gears back in it! lol.