8"
Simple procedure is well documented at our Trailblazer enthusiasts forum www.trailvoy.com Article section for replacing door speakers!
6.5" front and rear door speakers
where is the defrost/floor door actuator on 2002 chevy trailblazer
6/9
The speaker size for a 2004 Chevy Trailblazer is 6 1/2 inches. This includes the front, door, and rear speakers.
should do.. the body the same...
Same as the front (6.5 inch) although the speaker basket does not have the tweeters in it for the rears. www.trailvoy.com All the answers for your Trailblazer!
6.5" round speakers.
Remove the door panels
I have the exact same problem right now with a 2004 trailblazer... any discoveries?
Anything is possible with moddification.. but it is a lot easier to just get a set of the 6.5" speakers that it calls for.
Visit our enthusiasts forum at www.gmtnation.com We have a "how to" with pictures to guide you through the speaker removal replacement process! Yes .... you must remove the door panels.