What's up I'm changing al my interior bulbs to LEDs, I know all the sizes except for those swivel lights in top there r two in the front and two in the back. I was just wondering if anyone knew the sizes of these bulbs. Thanks in advance.

 

While the year of your blazer would help, they should be 194 or T10, both should fit fairly well. If I recall I had to trim just a little off of the reflector to get it to fit.

 

It's a 2000 zr2

 

Yeah, they are the T10/194 bulbs.