Can anybody tell me the kind of lightbulbs I need for all of the corner parking lights and 3rd brake light on a 90 Mustang with the hatchback?

 

corner-3156
3rd brake-912
parking-3157

these are the sylvania bulb numbers (per autozone website). the 3157 is amber tinted and the 3156 is clear, not sure which you are looking for. if you need any more bulb numbers then check out their website. just punch in what car you have and it will tell you what bulbs they have for each light.