2 6.5" subs in the doors
2 4x6" in the dash
The front speakers are 6.5" (round) and the back (in the extended cab doors) are the 4"x6" size.
6 inch by 8inch
5x7
4 6x8 speakers
4x6's
4x6
if it is a extended cab all 4 four speakers are 6X8
1988-1999 Chevy and GMC full size the door speakers are six and a half inch on the extended cab the pillar speakers are 4x6 in. Some Silverados also had a small tweeter inside the door.
4x6
Pay someone else to do it!
6 1/2 in the front doors and 4x6 in the back if ext cab
According to crutchfield.com my 1995 Chevy c/k 1500 extended cab pickup has 4"x6" speakers in the rear pillar but you can fit a 4" with a bracket of course