Halogen Tail Light Bulbs, 1157 Offset Mounting Pins

I've used a previous set on my '68 Ranchero for years. They are so much brighter, and the difference between running and brake lights is very obvious. Those who say they've had trouble seeing that difference may have an electrical system that is not delivering full voltage. A 12 volt system is designed to be optimal at 14 volts. If voltage is down by 10%, then light output is down by over 30%. Installing relays, especially for headlights, is a good option. Just now I ordered 2 pairs, so I'd have spares after using my only spare.