What am I missing?
Measure the bolt locations on the trim piece and lay them out on the tailgate.
For best accuracy, mark center on tailgate and trim. Measure the distance each way from that. That will guarantee L to R center.
Vertically I believe they’re centered in that portion of the tailgate.
I could measure my factory 80s style holes for you. But imo would be better served to just measure your trim piece.
Fwiw, seems like trim tape would be difficult. Although it would keep from drilling. Tough part is I don’t believe the center section of the trim piece really contacts the sheetmetal completely. Only at the bolt locations. Would have to do a little noodling on it so your $400 piece of trim doesn’t fall off and get run over by the car behind you!
Fwiw for others, the 70s style and 80s style tailgates are different as are the mounting bolt locations (and 3 vs 4 ea) and reinforcement piece is different.
Although each can be made to fit the other style tailgate with a little trimming of the reinforcement and relocating the mounting bolts on the trim panel (if the tailgate is already drilled).
I’ve been planning to mount a 70s panel to our 80s truck. But I haven’t restored the panel and emblem yet so the $8 GMC sticker is doin the job for now.
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