I have a 84 silverado swb and was wondering if anyone could tell me what what size and where are factory speakers located. I am currently in Baghdad and I just acquired the truck from my dad. I would like to upgrade the factory speakers I just need to know what size to buy. I tried crutchfield but it didnt really tell me where everything is at. Since i cant currently lay eyes on the truck i was wondering if some one could help me out. Thanks in advance.