Question: Need some light bulb advice.

[killain]

I've got a burnt out bulb in the rear 3157 and after looking at them, is there a right way and a wrong way to install them ? there's just four wires & tow filaments how do I know I have the in the right way ? There's 2 filament's a larger and a smaller one, who do I know which one is lighting up when I use the turn signals or brakes, Thank you !

 

[killain]

Well the problem is one side flashes super fast while the driver side flashed normal. Any suggestion ? I looked the bulbs over, there no one special way the go into the wedge. What's the secret ? Thank you !