Just a quick look, I think Wilkerson uses the DeTomaso parts book.
I actually prefer that reference over the Ford book. I find the Ford numbering and associating to illustrations a bit scattered.
I also prefer the DeTomaso Parts book illustrations. I think I found that book online before I got "the works" cd version. I have even converted those pdfs pages to bmp to let me cut and paste for discussions. I did a version with just the items that 5177 has and thus provided to GunnerZ for my inventory list