We bought my dad's 1967 Case 850 crawler, and have been gradually bringing her back after being idle for last 20 yrs. Had 2 cylinders rebuilt, washed out fuel tank, changed 2 of the 3 fuel filters (going to run a few hours and change them again before tackling the 3rd one), pulled the valve body assembly out and replaced the o-rings and seals, fuel pressure now runs 20# under load, 3# at idle (should? improve with more filter changes), replaced a bunch of hoses. Worked her yesterday pulling dead trees out of the fence row, went back to it today. I noticed a milky gray-green puddle when husband pulled forward, put finger in it---oily. Ran a few minutes more, trailing fluid, so headed back to shop. Stopped moving about 100 yds short. No blown hoses visible, so pulled the deck plates and seat. Looks like the transmission is now dry---nothing on the dipstick. Our guess is my dad will say, "Oh, we just kept adding fluid while running it digging pits." So, first we need to put fluid in so we can get it to the shop, then power wash the !!!! out of it so we can see leaks. No leaks at the converter, thank goodness. Can we get some ideas on direction on this? Sorry for the long post....