Trans went out during eliminations what happened???

I was cruisin through the trap at about 90 mph. As soon as I let off it felt like it downshifted hard then whined REALLY loud like I went into 1st at 90. I was like . Scared the crap out of me. There is no longer a third gear. What was that loud whine??? Could it have down shifted into 1st? I threw me forward HARD. It was one of those "WTF was that!?!?!?!?!?!?!" deals.

Thanks!

I think I'm just gonna put the AODE back in since its the cheapest route. Theres AODE's on Ebay from $675 to $950 (4R70W). I figure $400 or so for labor and I'm back on the road.

So any idea what that whine could have been? If I burnt 3rd would it automatically downshift regardless of speed?

O/D was off, I'm sure on that. I'm rethinking the Ebay trans idea. First, I have to pay $125 for shipping and then another $125 to send my old one back for the core refund. It comes with a 12 or 18 month warranty but I have to send it back to wherever it cam from, another $125 each way. Then if I buy the trans from one place and install it at another and something happens I'm gonna get screwed with the blame game (bad trans vs bad install). I need to rethink this. What is the 4R70W comprised of? In other words what questions should I be asking the trans shop? Can they take my stock AODE and put 4R70W parts in it? What should i pay for parts/labor for all this with a convertor? I don't want a race trans, just something that won't break at the track. Its that old fine line between finding a trans for street and strip use. I don't want neck snapping shifts around town.