I've had my 1966 Pontiac Lemans for 3 years now - every time I had a mechanic fix transmission fluid leak under the engine the leak comes back after several months. Brought the car to two different mechanics and the seal they used looked like a fibrous hemp rope. Need help with guidance on how to properly fix transmission fluid leak problem and/or possibly refer to a good mechanic shop in the Long Beach, CA area. Thank you so much Al G
