Ray,
That bolt that Don(WA2FAST) speaks of broke in mine as well. It holds the shifter cables on the inside of the tranny.
It cost about 1200 bucks to rebuild it. All was covered under warranty except for the new clutch that went in at my expense. The new clutch cost me about 250 IIRC.
When mine went, I was shifting into third normally and that was all it took. At least it got stuck in third.
On the plus side, while it's out you can 1) put in a new/better clutch, 2) a Quaiffe 3) new flywheel.
I know what it's like to be without my SVT due to an "illness", it sucks. Hopefully your shop can fix it quicker than the month it took to do mine.
Stupid AAMCO
Good luck,
Mike