[Keith Seymore]

First of all, thank you for posting those. I love 'em and could look at them all day.

You guys are correct. The build sheets are to help facilitate the assembly process and are meant to be pitched after the truck is done. I've watched several million build sheets get thrown away at the end of the line. Build sheets that are stuck in the seat cushions or on top of gas tanks (or under the carpet) get left there because it's easier to leave them where they lay than to remove them and throw them away.

So - since they are not a controlled document it's possible for them to get in the wrong vehicle, either because someone got out of sequence or because someone removed a build sheet and threw it back into the wrong vehicle.

If you look at the schedule date/ sequence in the upper LH corner these two trucks do appear to have followed one right after the other (18-2828 and then 18-2829). Notice that, in spite of that, the sequential portion of the VINs are dramatically different because Chevy and GMC had separate VIN sequences (Chevy started at 100001 and GMC started at 500001).

K