bout to go change the Tranny fluid and filter, as well as T-Case fluid since we have about 20 quarts of Mobil 1 ATF...scared cause i know the Tranny filter has never been changed cause my dad didn't know it had one, and no one knows when the T-Case was done last....fingers crossed
update:
changed tranny fluid, dropped the pan for the first time since 99 which means it had the original tranny filter in there with 325,500 miles, to our surprise it was extraordinarily clean. the magnets had a tiny bit of sludge but it cleaned up nice. new mobil 1 full synthetic ATF, new trans filter (old one still looked brand new) new Mobil 1 ATF in t-case, t-case fluid was pretty gnarly but wasn't to a point that I should worry, no metal shavings to be found either.
tip of the day, don't wear a white t-shirt when dropping your tranny pan lol