Vehicles with automatic transmissions have a flex plate. Flex plates connect the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability Package Dimensions: 14.5 x 14.5 x 1.0 inches Package Weight: 3.47 lb Package Quantity: 1 UPC: 740993022862 Contents or Additional Details: C3 Trans. Diameter (in): 0.943 Diameter (mm): 287.375 Mounting Hole Diameter: 9.25 IN Outside Diameter: 11.313 IN Pitch Flywheels: 12 Safety Rating: N/A SFI Approved: N SFI Certification Sticker Included: N Teeth: 135 Tooth Quantity: 135 Weight Added: N Country of Origin: US