The only thing I can think of is the option was not that popular. I found the PN on the booster itself, but no associated parts. There is nothing (that I can find) in the ILL Section either.
The 1948-56 TRUCK MPC FINAL ISSUE was printed in 1964 so you would have to find an earlier edition to hopefully find the info.
The booster operates the same as a 55/57 BIRD? There was a flexible brake line between the MC and slave cylinder?
EDIT -
I found the description in my 1954-445 TRUCK SHOP MANUAL Pg 205
Also, below is an ILL that while not an F-100 installation, will show somewhat a close installation (1948/52 B-F750).

FORD ILL are a modification of engineering diagrams and only show enough to give the PARTS DUDE BASIC PN references.
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