That's right. You still can't pump your own gas down there either, right? (I lived in MD years ago and used to regularly go see my folks in MA and usually topped off the tank before I hit the xBronx.)

Call the yard. "I'll take this off your hands yesterday if you can get me this measurement." Don't tell them yours, so they won't just say "Oh yeah, it's 46 1/4." Or find one in a parking lot and duck under it real quick. Any time I've said, "Hey, can I crawl around under there a sec?" the owners have been all too happy to let me thinking I'll spot something wrong.

Dunno. Car-part doesn't cross them over. I'm willing to bet it will hang right up, and if not, moving perches isn't a huge job.

You're right, Diamonds are just the housing, but everything you have from your rear would drop right in.