This is a new old stock, genuine Ford/Mercury speedometer driven gear # D0OZ-17271-A in the original Ford box. This N.O.S. gear is mint and has never been installed. It is purple and has 21 teeth.

Fits:

1969-1971 Ford Mustang and Mercury Cougar with 3.50 ratio rear axle and C6 automatic transmission

302 351 fastback fast back Boss 302 1971 Merc XR7 21 tooth teeth speedo coupe Mach 1 C6 Grande Shelby GT500 A/T conv Eliminator 390 428CJ 429CJ 3.50 ratio rear axle R/A purple automatic transmission trans auto hardtop hard top coupe convertible convert