This little gadget is used to convert your existing alternator to a one wire alternator in short this is a tiny voltage regulator rather than the big bulky one please note your alternator must be no more than 60 amp
CONVERSION KIT, ONE WIRE ALTERNATOR, MAXIMUM OF 61 AMP ALTERNATOR, DAMAGE WILL OCCUR TO ALTERNATORS EXCEEDING 61 AMPS
Vehicle Applications
1965-1973 MUSTANG
1966-1977 BRONCO
1968-1979 F100-F350 240, 300, 302, 351, 352, 360, 390, 460
1980-1986 F100-F350 300, 302, 351, 460