i have 2005 chevy trailblazer ext ,4.2 l6 , last week i was driving on highway and suddenly the rpm revs and no fwd motion at all , any how i took out off the traffic and parked and tried to shift in D ,1,2,3,R nothing works at all but the engine is working properly .my mechanic told me it could be torque conveter but when he pulled out the transmission the oil pump is completely damaged .i need manual for this transmission if any one can give me a link.