have a th350 tranny car stuck in first gear no park, neutral,no reverse
what could it be took it out last night drove fine shifted fine
today pulled it out of the garage to clean and when i pulled it back in
stuck in first gear put car in the air to check linkage it was fine
fluid leavle was good. it has a b/m stage 2 shift kit I installed do you hinki it has a stuck valve or accumulator or governore ????????

 

I would have to say it's inside of the trans. Drop down the pan and see if the linkage is loose.