This is a brand new automatic transmission kick down cable for your 1965-68 Ford Mustang with any 289 or 302 V8. Will also fit 1967 -68 Mustangs with the 6 cylinder. Also will work on 67- 68 Mercury Cougars. If your not down shifting under acceleration this may be the culprit. Shipping will be $6.00. Thanks for looking and good luck.