Okay! Apologies to anyone following this thread! I could not log in after the whole security breech, but got a new password today! Lots of news here; first, it did end up being the 90mm axle flange. I replaced it, and it's working just fine. Also, the whole issue with my idle ended up being the Air Flow Meter (not a MAF, as pointed out in another thread, but an AFM). Changed that out, she purrs like a kitten. I've been driving all over the place! I also figured out what's up with my mileage. I noticed one day that my odometer just quit working, and turns out it will do that every so often, for about 20-30 miles, and then start working again. That explains my poor mileage, I thought. So, to test my theory, I drove from my house, in Central Washington State, to my inlaws over by Seattle, about 200 miles, then, did the math when I topped off the tank. Turns out, I used 6.4 gallons of fuel in 200 miles, or, about 31 miles to the gallon. So, that's where I'm at now... pretty happy! It still bucks and misses slightly when attempting to hold the throttle steady at about 2k RPM, so I have an oxygen sensor on order, that should be here in a few days, and I'm hoping that will totally clear it up. Either way, I now have a fairly reliable car for the winter now. Thanks to everyone who helped out and/or threw in opinions and advice while I tried to figure this out. And, hopefully, this thread will be able to help someone else in the future.