Hey saw 07Forester post in the feedback forum. If you have been pleased with him, post up there. Can't wait till my set comes in!
http://www.garagejournal.com/forum/showthread.php?t=120886
Its the same with wheels too. Wheel diameters are all done in inches, then combined with metric width.
There are few other weirdo SAE-Metric combinations I can think of. I think it has to do with war time in the early 1900s where the tooling was SAE, but they wanted to use metric. For example...