I drive a 97 Thunderbird and I disconnected my battery to redo the positive cable because it was super corroded. I reconnect the battery and now my car is shifting weird and way too often. It feels fine when I am on the gas but when I let off it does something in the transmission feels and sound...

Hello all. I've been putting this off but I'll try to explain what my transmission is doing in my '97 T-bird 3.8. I've searched the forum to no avail trying to find a solution. From a stop it shifts fine from first to second. If it's cold outside it shifts slowly (like someone slipping a...