ok every1 i know that this dont really have to do with being a diesel but the previous owner has blown all the speakers in my 05 f250 6.0l crew cab and i was just wondering if any1 knows the size of speakers i need to buy to replace the factory ones.

 

https://www.dieselbombers.com/audio-...know-size.html

Check that out. They appear to all be 6x8's

 

i was told the rear speakers are 5x7 but havnt confirmed it. As for the speakers in the doors i have no idea what they are.

 

Front and rear are 5x7/6x8 they're all the same. I have Infinity's in all four corners of mine. Check out crutchfield.com they'll tell you what fits and what doesn't.