Not good news, apparently the auto transmission is shot. Since I got the car in Feb I've only driven it two or three times, and that was to the Mustang shop to have the new (used) engine installed, and to get the dyno. THAT'S IT. The mechanic stated the it's been driven with very low fluid and overheated. Not by me, and I DID check the fluids and so did the Mustang mechanic. I have a huge pool of fluid on my garage floor, so I don't think that the transmission was that empty - it just leaked out over the past 3 or 4 months.
The mechanic quoted me $3,200 to rebuild the tranny and for him to put in some kind of cooler unit that sits along side the old radiator. I said no way. I can't afford that, that's more than I spent on the car! I let him know if he can find a used reasonably priced tranny, that he can call me and give me a quote. If not, I'll just have it towed back to my driveway and it can sit there for a while.
Crap, crap, crap and CRAP!