I put most of pics from the rear under carriage on a web site. Here is one that shows the color of the red.
http://www.members.cox.net/chevy1142..._3055.jpg.html
You can see how that black was sprayed on the tank after it was installed. The Gas tank details and the rest of the pics are here:
http://www.members.cox.net/chevy1142..._Pictures.html
Greg
BTW Rick and Marlin I will pick up some of the 3M stuff and give it a try.