tail light bulb and turn signal bulb sck designation
for a 2011 truck, the front turn signal bulbs and the rear tail/turn/brake bulbs are dual filament bulbs. both are 3157 but my question is are they SCK pinned or regular pinned? the SCK designation refers to the ground and two power pins location on the bulb holder. does anyone know for sure which designation our bulbs are?
thanks
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