Just did mine at 134k. Might have to cut up the old one to see how bad it is. I'm pretty sure it has never been done before.
Yeah, dropping that huge ass cover is a pain. I got mine to drop pretty far though, so everything was very easy to access. Yes, the tranny oil pan is dropped. While I was under there, I did all the fluids (front & rear diff, transfer case, tranny, engine, coolant).
