I don't think you're going to like a 3.73 rear with a .82 TKO600, at least out on the highway that is. One of those gears needs to change. You don't have to go all the way up to a 3.31; I have a 3.54 along with a .64 and it is perfect for highway cruising, in my neck of the woods -- but you know what speeds are like where you drive, and you know how to use a gear calculator. "Pleasant highway cruising" is the only thing you'll ever use a .64 fifth gear for (that, and top speed runs). But, I love mine.
