I own an '87 R10 that I've done a lot of work to. (Rebuilt a 350 to replace the 305, painted the interior, new wheels/tires etc...) My neighbor used to own the truck and he didn't even let it see rain. It was stored during the winter, and when he gave the truck up, it went to my dad's business. They put another 60,000 miles on it as a work truck and then my dad's boss gave the truck to me. He wanted to find another work truck, and he drove past a big dually for sale. He got closer to it, and it was in great shape for $1500. He picked it up, and it's sitting at my dad's work. All I know so far is that it's an '87 1 Ton dually with original blue paint from GM, and a factory 350. I'm going to take pictures and I'll show you guys!