Details : GARMIN GFC500 Avionics Hardware Kit for Piper PA28 Series Per Drawing Number 190-02291-05. Includes Best Source Hardware For Base 1, Pitch Trim 1, Pitch Trim 2, Pitch Trim 3, and Pitch Trim 4 Options (115-03354-00, 117-01472-00, CTM-1, MS3367-X Not Incl