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The double filament 1157 bulb is used in the tail lights and parking lights of the 1958-1960 Thunderbirds. Does anyone know why import 1157 bulbs do not work in these cars. The parking lights go on, but the turn signals do not work. American made GE and Sylvania bulbs work fine. The bulbs look nearly identical. Does anyone know what the difference is the causes the import bulbs not to work?
I ask this because domestic made bulbs are getting increasingly difficult to find.
Alexander
1959 Hardtop
1960 Golde Top
I ask this because domestic made bulbs are getting increasingly difficult to find.
Alexander
1959 Hardtop
1960 Golde Top
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