I have a 98 Silverado 1500 and want to change the speedometer cluster, a/c heater control, headlight switch and door panel switches to led. What bulbs and sizes to I need? Had a guy quote me $250 to change them out. I can do it myself for a lot less just need to know what to get.

 

It will say in your owners manual, or you can google it. I don't remember the bulb numbers, but I wouldn't mess with it. Not worth the PITA.