Welcome to the Mo chapter, sorry I do NOT have any thing newer than 79.
Dave AKA Grems4ever got all the later on truck electric diagrams. Hit him up to see if he has your year in that bunch that I gave him.
https://www.ford-trucks.com/forums/member.php?u=522480
Come to the monthly chat thread and state your elec issue. We have a # of spark qualified folks. They should be able to help ya out.