I have a "3F" on my ID tag for my car. I have a hood tach and non-power factory front discs. I don't think the "3F" has to do with brakes. My body broadcast sheet has an "F" under group 3 on line #7, whatever that means?
The last line (D 2WG 4FQ 5C) is all listed on the body broadcast sheet line #7 and I think they are all body and interior trim options. Here's what it means:
Group 1 - D Group 2 - WG Group 4 - FQ Group 5 - C
Unfortunately, I have no clue what any of that means. I am just lucky enough to have the original sheet.