Ok, so it seems that most people are using the 10mm x 1.0mm speed bleeders (ignoring the conversation about the "regular" vs the "short" versions).
When I spoke to someone at Summit Racing, they said the Contour needed either the 10mm x 1.0mm or the 8.0mm x 1.0mm but there was no way to tell which size. They said the dealer should know, so I chuckled and came to the message board.
In addition to the two sizes I mentioned already, I also saw someone who had the 8.0mm x 1.25mm.
Is there one answer or are there really various sizes varying from car to car? (thanks Ford)
How can you tell besides taking the bleeder screw out which size is for you?