Re: 1952 Ford 8N tire size help
5.50x16 fronts are not unusual, but...
16.9x26 rears are.
Stock rear tires would be 11.2x28, but 12.4x28 (or even 13.6x28) would not be unusual.
Your rear tire size will have required 'new' rims and wheel centers (which would both be required to go back to an 'original' size).
Originally, of course, the 8N came with 10x28 rear tires, but... at some time between the '50s when these were made and now... the tire manufacturing industry changed their tire sizing.
The 5.50x16s on the front were a dealer option... the 'stock' was 4x19s on the front.