Hello, I have a 1977 vette 3-speed Turbo Hydra-Matic automatic transmission that I bought 2 years ago and I’ve been slowly working on it. I put new heads, intake, headers....etc. I currently go to school out of state and I had to leave it at home. My parents moved it out of the drive way Onto a small little hill to work on their porch. I came home to start it up and give it a wash. I’ve been gone for about 5 months. So the battery was dead and once I got it going it won’t shift out of gear. It’s stuck in park. Any ideas how to get it out of park?