Where can I buy an F100 wheel cap like this?

 

Those are aftermarket. Possibly Wheel Vintques.

Garbz

 

Speedway magazine they have wheel beauty ring and centercap

 

This was once known as the "spider" cap, was a popular aftermarket accessory in the 1960's. I installed a set on my '53 Merc Club Coupe.

The style of beauty (trim) ring has been reproduced. Original applications: 1942/48 Ford (16") & 1942/48 Mercury (15") Passenger Cars.

White wall tires were almost impossible to acquire during the Korean War, so automakers painted many of their vehicles wheels red to brighten up "the look."

 

"Spider Cap" was the key word for my search. Once I had the name I started finding them for sale. I really like this look, but at $57 each, I think I'll pass.

I've got a cheap truck, and fixing it up with a cheap buget is part of the appeal for this project.

Thanks for the great information