I would like to know as well, i purchased some 6.5s for the front door pannels and they fit. Not sure about the rear door pannels and dash
I searched www.sonicelectronix.com and they had this to say:
Car speaker fit guide - Chevrolet BLAZER S-10 2001
According to our database, here are the speakers types that go in your CHEVROLET BLAZER S-10 2001 car, along with their location:
my Chevy blazer 2001 4 door has 6 speakers
6x9
no,stock location fits a 5 1/4
Yes, the doors from a 98 Chevy Blazer will fit a 2001 Chevy Blazer with a little moderation.
4.3l v6 190 hp
will a 245x75x15 fix a 2001 chevy blazer 2dr
where is the blower motor on a 2001 chevy blazer
wat other motor can i put in my 2001 chevy blazer
How to Remove the Steering wheel From a Chevy Blazer 2001
5 1/4 for the back doors and 6 1/2 for the front doors. I am not sure about the dash board speakers.
3-1/4 in front 4 x 10 in back
3-1/4 in front 4 x 10 in back