I just changed all of my fluids to Redline. I am at 25500 miles now. I put MT-90 in the tranny and 75w90 in the transfer case and rear differential. I haven't driven to far yet, but once I have I will write up what I think.
Well the shifting has improved in the high rpms but it is still rough in the low rpms. I think I will need a tranny rebuild eventually. I am one of the unlucky ones who got blessed with a messed up tranny to begin with.