they do, but come on, dont be a bitch, the king pin is not the truck, also the pivot cup is just some tiny piece of plastic that AINT the truck either, you could just replace it.
i broke my baseplate last july, contacted nhs through email, they replied right away, all that they required in order to replace them, was some pics for proof, thats it.
sent my old trucks, received a fresh set of 8.5's and a couple of stickers, so im more than happy with indy.