Brown Fluid 904 - Exchange fluid myself?

once you've seen what the bottom of the tranny pan will look like when you pull it off, you will be taking that off and changing the filter every time. My old 904 and the tranny in my 95 blazer had lots of filings/junk at the bottom of the pan. If you are careful when you take the pan off you won't even spill a drop on the ground.