If I had to do it again, though, I'd probably take it in and have it professionally done. It'* much cheaper than a trans flush.
I don't like taking my cars in to have any work done on them unless absolutely necessary.
I still have nightmares about the one time I took my old International Scout in for a Trani oil change. When I picked it up, I noticed a brazed hole in the bottom of the oil pan. They had punched it with an awl to drain the fluid.
Come on Bill, that'* one of the reasons we have this forum, to do our own work, play and learn.
Changing fluids like coolant should be a basic job.
So if there isn't a block drain plug....like there is on my Firebird....I suppose that I'll go the same route of most "professional" shops, garden hose stuffed with a rag.