I recently bought what I thought was a 1971 K10. The Model number is KE10934, 1971 - 1/2 ton - 4x4 - fleetside. But at some point the truck was pulled off its original chassis and placed on a 1980 or later 3/4 ton chassis. I was told this is true because I have a ten-bolt front differential. I also have a Dana60 rear end, and 8 bolt wheels. My question is, does anyone have any advice or experience in identifying the various parts of this hybrid truck?