5 1/4s front and back 4x6 front dash
4x6 inches. Many aftermarket speaker manufacturers make a direct replacement in this size.
4 x 6 in the doors 6 x 9 in the rear
Speaker size for front and back are 5 X 7 / 6 X 8, both are the same.
The stock gear ratio for a 1995 Chevy Blazer is 3.73. This provides a good balance of fuel economy and power to the rear wheels.
6"-3/4
door 6.5 rear 6.5
No, it was optional for all years of the Gen 2 (95 - 03) Blazer, Jimmy, and Aurora.
http://www.therangerstation.com/tech_library/Audio_WhatFits.html
All speakers are 6.5"
The 1995 Chevy Blazer typically comes with 4-inch speakers in the front doors and 6x9-inch speakers in the rear side panels. However, the exact speaker sizes can vary based on the specific trim level and any modifications made by previous owners. It's always a good idea to verify the sizes by checking the vehicle's manual or measuring the existing speakers directly.
should be 190 hp
the rear are 6 1/4 inch