The side door speakers are usually six inch, at least they are in my 95 blazer. If you buy one of those repair books based on a complete rebuild, it gives detailed instructions on how to take off door panels, replace speakers, etc.
Original manufacturer's tire size for a 1995 Chevy Blazer are P205/75R15 97S.
6x9
the speakers in the dash are 4x6s, the speakers in the doors are 6.75in. and the back speakers are 6x9's
6.5S 6.5S
5"
4x6 in the dash and 6x9 in the rear
5 QTS is what it holds.
235/75R15
4x6 inch
6" x 9"
4.6
i just recently put new door speakers in a 2000 Chevy blazer. They are 6 and 1/2 in all four doors.