My '72 C-10 (I bought out of an impound lot) included a free broken bong that looked like it had never been cleaned in the glovebox. Made me think I knew why the darn thing had been impounded. Also came with a nice T-handle driver for 1/4" sockets and a couple screwdrivers. Original intake setup for the 350 in it had been replaced with an Edelbrock performer aluminum intake, a squarebore to spreadbore adapter and a carter afb from a late 60's chrysler 6 banger that was worth a good $130 to some numbers matching nutjob on ebay. I also sold the adapter to a friend who put a Q-jet on his 351W ford motor in a correct craft skinatique and put the intake on a different motor.
My '72 Cheyenne came with the factory book (in good condition too!) a couple screwdrivers, a couple small wrenches, and a lot of bees nests.
God is not on the side of the big armies, but of those who shoot best.