FYI: Sylvania / OSRAM designations for replacement light bulbs: 1979 - 1983 pre-Tacoma pickups. 1979 - 1983 TOYOTA Pickup (Pre-Tacoma) High & low beam headlamp H6054 Parking light 89 Front turn signal 1073 1156 Rear turn signal 1073 Tail light 1034 Stop light 1034 License plate 89 194 Front sidemarker 89 Rear sidemarker 1034 Instrument-general 194 SOURCE: http://www.sylvania.com/ConsumerProducts/AutomotiveLighting/LampReplacementGuide