[Tempest67]

After installing new cowl pieces, new cab corners, a new rear roll pan, and wanting to return my tailgate back to its original look (patina) I did this,

1. paint area flat black
2. paint red oxide wherever you want over the flat black (all or part)
3. mix up Rustoleum to match your truck color as close as you can (green in your case)

Let dry and start sanding to your desired look. When you get down to the black color, stop, as you don't want the blue S10 bed to show through.

Once completed to your liking, apply flat back, and/or red oxide on a rag and wipe over areas to create a 'natural' look.

Here is a pic of mine now, and if you look close, you can see that the cowl pieces and cab corners aren't perfect, but I think they look close enough to the rest of the truck.

Experiment on a piece of metal to get the feel for it. I enjoyed the process as it was something I really have never done before, and remember, you can't do it wrong, because it is a Patina truck.