*wince*
Ouch, dude.
That sucks...
The two things that concern me most are, obviously:
1.) The grinding sound.
2.) The "something leaking" you heard.
If I'm picturing what happened correctly in my head, you could have wrenched any number of things. You're going to have to get the car someplace where you can work on it and examine it thoroughly.
The most important things to check are those that are connections between the object that moved (the engine) and the parts of the car that didn't:
* Radiator hoses.
* Transmission cooling lines (mounted to the
tranny, sure, but routed under the engine often and could have been pinched / broken by the rotation in any case).
* Engine electrical connections.
* Throttle linkage.
* Transmission kick-down lever.
* Power steering pump / hoses / etc.
You'll want to find out what the engine hit on its way down. Off the top of my head, I can't remember what's underneath the engine in my '
Stang, but I think there's at least a crossmember under there that may have been damaged. Which also may have damaged the oil pan. The engine may have also collided with parts of the steering mechanism. Anything at the front of the engine may have been damaged if it did.
Additionally, you'll want to give the
tranny a thorough once-over. Check the drive shaft, make sure it isn't bent. Check the u-joint, make sure it isn't schmutzed up. Check the
tranny rear seal. Check the shift linkage, make sure it isn't bent anywhere. I think there's also a support member underneath the front of the
tranny that may have been damaged as well.
Check the exhaust system too. I've found they're usually fairly loosely mounted, so they can take a significant degree of motion, but it may not be the case for you - especially if you have a non-stock exhaust system.
Post what you find out. (Pictures might help, if ya can, though I don't know how much help they'll be...) And we'll work from there...
URGENT ... NEED HELP ... BROKEN ENGINE MOUNT and TRANNY? 
