I want to know if anyone knows whether a 1984 T-bird with a 5.0 AOD transmission has a electrical component that causes it to shift. Last night the transmission was working fine all the way home. Never had anysigns of problems. Shut off the car last night after work and this morning it will not come out of first gear. I have serviced the transmission regularly and it is full of fluid. It has a cooler on it as well. It has never slipped or hesitated between shift. It has a shift kit installed and only 80,000 miles on it. Any help other then just replacing it??