" From: farna@xxxxxxx " " I'm assuming you meant "they breathe much better than sixes at higher rpms". yes, though i assumed that meant better at all rpms too and would tend to shift power peaks higher. " The only problem with an American/199/OD/3.08 axle is you have limited " use of OD. Good for level crusing only! Would be a fair amount of " shifting in and out of OD. Not to bad except in hilly/mountain " country. Then it would be plain irritating! yeah, i figured it for highway only. around here though, the highways don't have much for hills! ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought