-3/8-18 NPTF-, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads... see more-3/8-18 NPTF-, V8, Chevrolet small block, with factory gauges & aftermarket or 1981-up cylinder heads which have a smaller sending unit hole (correct resistance and connection, produces accurate gauge display)
-ALTDI-, with warning lights & side marker lamps Note: Modified for driver side 1985 and... see more-ALTDI-, with warning lights & side marker lamps Note: Modified for driver side 1985 and earlier SI series internally regulated alternator, if using a 1984-99 CS external fan series internally regulated alternator you must also purchase part #VAK6986CS ALTERNATOR CONVERSION HARNESS