Installed new tires and rims - huge improvement with the steering!
I really like the 29.5" tall radials that look like the stock bias ply.
Thank you everyone for you help on this one.

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
20190504_144027.jpg (304.17 KB, 76 downloads)
tires

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