Brand new fluid everywhere... front/rear diffs, transfer case, and transmission. I had Mobil 1 synthetic in the tranny and transfer case, but replaced it with conventional Valvoline gear oil in hopes of quieting some of the whine... it has worked somewhat. Toyota tells me that the whine is perfectly "normal" for a tranny with 111,000 miles on it.

My rotational play is only about 1/8" max.

I just did my major Spring tune-up! All new fluids, I replaced both O2 sensors and the TPS (CEL came on for those), new brake rotors and pads, and spark plugs.

~Dave