tcc stuck locked!!! help

:banghead: have a cheeroket,94, 6 cylinder, auto. high miles. It started stalling at stop signs today. then, shortly after,it appears the tcc got stuck in lockup! will not drive now. runs fine in park and nuetral. Fluid doesn't smell to bad. Put it in any gear and engineimmediatly boggs down and dies! Any ideas on how to diagnose wether it's in the TC, an electrical issue or a mechanical valve body issue? Need some thoughts kinda quick. Thanks to all who respond...thanks

TCC- torque converter ??? Whats the other c for? You got a service manual of any kind?