I JUST pust 4.30's in my auto.
I started out w/ 3.73's, and they just didn't do it for me.
Then I jumped to 4.10's, and realized that there was still more potential left in my DAILY DRIVER.
I now have 4.30s, and just made on helluva road trip, pulled 20 MPG's, in my auto, on the interstate, any 5-speed would do better than that......
Most of the gas mileage probels come into play b/c of the driver heaving a heavy foot......
And the gears last longer than you'd think, its just that everything happens so fast when you're in a race.................unless you're in a ricer
-Will