Would these 6-3/4 fit in the gd3? and what do you think about these speakers

 

I love the way they sound, and I'm used to my TS-C720PRS

 

Umm........Would anyone like to answer because I want to get these soon!

 

If the Fit has 6 3/4" speakers, then they should fit. I thought they were 6 1/2", though.

 

I am not positive about the GD3, but the GE fits have 6 1/2" speakers for front and rear.

 

Yes, 6.75 inch speakers will fit. The only thing you need to be concerned about is depth. Which Crutchfield says they have a depth of a bit less than 3 inches, so you shouldn't even need any spacers. Although, looking at Pioneers website it says that the tweeters are 1 1/8 inch in diameter. I'm not sure how well those will fit in the GD3's tweeter holes. It'll probably take some significant modification.

Take some pictures!