Im up to 5 extended cabs now, 1-85 K10, 1 85 K20, 1 86 C10, 1-86 K10, and 1 - 86 extended crewcab. Most of them were made in Arlington Texas, all of mine were. I have been researching them for 4-5 years now, I dont remember for sure. I will put up pics when I get a chance. I have a new computer...