How much coolant were you able to drain out? I had my coolant replaced by a shop about a year ago, just orange to orange, this was before the new yellow coolant came out.
I had brought in two gallons of the Motorcraft orange because the owners manual says the capacity is 6.1 quarts. The mechanic, who is very experienced and who I know and trust, told me that he was only able to get about a gallon out because there was no block drain if I remember what he said correctly.
Because of that I'd be interested to know how much coolant you got out, and how you did it as DEss asked above.