Guys,
Thanks to all of you for saving me a lot of time and money!
The engine leak that appeared to be a rear main seal ended up being a leak where the remote
oil filter adaptor attaches to the block! All the
oil did run to the back and bottom of the engine. We put the car on a rack, cleaned the whole engine off underneath and then watched for the leak to show itself while it ran. The cheap aluminum adaptor was brand new, but it had been overtightened and was cracked. So I ordered a billet replacement. Problem solved!
I also ran a pressure check on the coolant and found a bad thermostat housing. It was also cheap aluminum and it was leaking somewhat too. I replaced it with a cast iron piece and that leak is gone as well!
Now, a nice dry garage floor, finally
Thanks again for all the input you guys gave to me!
Skip B