1968-1971 Ford Thunderbird, Lincoln Mark III.     C6 Automatic Transmission REAR OUTPUT SHAFT. This is an ORIGINAL FORD PART.  Removed from a 69 Thunderbird 429-C6 Transmission.  31 Spline Output.  25-34-36-31 spline.  Measures 23" Overall Length. The Shaft is in Great condition... No Rust. No Visible Wear. No Chipped Gear Teeth.  Has Great Splines and Gear Teeth.  Overall, this is a Great Original C6 Transmission Rear Output Shaft.  Please email with any questions.              071414                            WE HAVE AN EBAY STORE WITH THOUSANDS OF ORIGINAL and NOS FORD PARTS. CHECK IT OUT.