Revitalize your classic 1964-1986 Ford Mustang with the Classic Update Series Alternator Conversion Harness from Lectric Limited. This straightforward plug-in solution allows you to effortlessly upgrade to a Delco-D internally regulated alternator. Enjoy improved charging efficiency and reliability, making it a perfect upgrade over outdated wiring systems that can compromise performance. With this conversion harness, you combine modern technology with classic style for a seamless transition.