" From: "Jim Blair" <carnuck@xxxxxxxxxxx> " " A: The fuel economy difference is minimal. Maybe 2mpg. 2mpg is almost 10% isn't it? " The D30 hub kit i$ " expen$ive and a much easier way is pull the guts and axleshafts from the " front and undo the ujoint at each wheel and put the stub shafts back in. The " housing weight difference will be @25lbs that's a good thought. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought