For sale is a used flywheel for a 1956 - 1959 GM dual-coupling Hydra-Matic (also known as a StratoFlight, Jetaway, and Super Hydra-Matic), part 0.666 "flywheel" on the pictured schematic. This particular part came from a working 1959 Pontiac Super Hydra-Matic with 41,000 original miles, but it should interchange with all GM Hydra-Matics from 1956 - 1959; it is the buyer's responsibility to research and confirm part interchangeability. The part is used, has not been cleaned, and shows signs of oil/grease, dirt, grime, and normal surface scratches. I see no cracks, severe gouges, or other problematic damage. Due to the part being over sixty years old and used, it is sold as-is with no guarantee. I accept returns with buyer paying return shipping. Please see my other listing for more Hydra-Matic parts that I have from the same transmission.

The flat-rate shipping price applies only to the contiguous USA. All other buyers including international, please contact me for a shipping quote prior to purchase. Please let me know if you have any questions. Thanks.