Got a couple questions about buying a used Cheyenne.

[Dead Parrot]

They do tend to rust from the inside out. Check under the back cab corners, inside back of wheel wells, around the battery tray, back edge of bed. Open the doors and check around the inside of the cab where the weatherstrip runs. Check inside bottom of doors. Check under the floor mats for cab rust. Not a complete list.

AC condensate drips from the passenger side just in front of the cab.

Take the tag number to a tag agent/DMV or whatever your state has and see what mileage they show and for that matter, if the tags come back to a C10. Check on the cost of getting tags current. The state will likely want past years of money from someone. Depending on state privacy rules, they might not confirm ownership info.

If your state has emission checks, verify that the truck has all required equipment. Common for it to vanish.

Remember these are 30-40+ year old trucks. Rare to find one in really great condition without a really high price.