Page 17: F5/F6 (T/TH) & F5/F6 (W/WH) COE / Page 18: F7/F8 (Q/QH).

See page X1II to translate parts catalog symbols to actual models.

You should list what year/series truck you have in your "About Me" profile. All that's listed there now is 1949 F1 through F8.

You should also type it as a signature and when asking questions, mention all the pertinent details.

Remote mounted brake booster is known as a Hydro-Vac.