[OrrieG]

The whole diagram is in the v8 engine RPO section in the back of the manual, all of the stuff pertaining to installing the V8 is there (hint hint to those wanting to convert from 6 to V8). Above the detail it has a picture of the whole fender and part of the cab which might answer your question. I don't have the book with me. I assumed you had the holes for the 3100 emblem and just needed the measurement from them. If you have not figured it out by tonight I will shoot the upper part of the page and post it.