confused on these brakes

well still kinda hard from that. with hindsight one of those situation where i'd need to get my nose up close and have a good look..

if what you have fits well, use it
the main thing is safety, and if the brakes worked in the past they will again and better with the new parts....

and unless you looked that part up in the parts book for the model? who is to say that the person or oragnistaion who says its for 10 inch is correct....?

Your car might be a cross over model a "built during a strike at the suppliers of brake parts" model, where the fatcory made do with what they had to hand, or you just have a happy coincidence of parts that fit and work...

Dave