Builders tag. Does anyone know these codes?

[rollin thunder]

I lost the builders tag or builders sheet or whatever it is called. Below is the only picture I can find that is readable. the truck is a 1984 c10 1/2 ton 2WD 3 speed on the column and originally had the 250.

I can figure out the first two lines on the second column. I assume it says fleetside and 4.1 250L6. Does anyone know what the other lines are? or could be? maybe there is a cheat sheet so to speak to tell me what they mean.


In case this inst readable I wrote out everything on a sheet of paper. I will post it next