Installed new tires and rims on my 1954 - huge improvement with the steering and handling!
I really like the 29.5" tall radials that look like the stock bias ply.
I'm running 40 psi and they ride good.

For reference, this is what I bought:
Rims and hub caps from Jim Carter Trucks

Rims: MST150 steel 15x5 6 lug 5.5 bolt pattern
Chrome Hub Caps: MST159

Tires from Tires-easy.com
ST205/90R -15 Radial
Attachments
20190826_182516.jpg (198.59 KB, 209 downloads)

1954 Chev 3100 Truck - Mostly all "Original"
https://lh3.googleusercontent.com/4...7X26uneH2rb3222fNY4s7FvnKH=w1697-h954-no