Decipher Firestone tire dates.

[owners2]

Have two Firestone tires that are like new. Are they repos? Or old mint Tires. Codes CYUD F317027 / next CYUD F 317057. Thanks guy's Jeff.

[Mr70]

They sound like repros...circa 1990's.

[owners2]

Thanks Rick. Well they still have stickers (no dates) on them & perfect tread with nubs still on them to. I'm giong to use on my mid. year 1971 Z28.