Alright,
I'm trying to fix the front door panal speakers in my 01 convertible z28. I've read that the size is 6 1/2, but now I'm doing some more research and seeing that it is 6 3/4....wtf!? CAN SOMEBODY please clarify with me because the internet is hurting my head!

 

nevermind. I found out 6.5 is the right size

 

It's really a 6.5 slim, but most 6.5 speakers now days are small enough to fit. It really will only matter on the rear speakers. They have to be slim in order to clear the top.