In Reply to: Front tire size for a ‘53 GJ posted by TwoWalnuts517 on February 20, 2018 at 20:53:01:
The original Ford Model NAA Owner's/Operator's Manual lists the 4.00 x19; 4-ply as standard OEM issue, and the 5.50 x 16 was the optional (at extra cost) style. Firestone was the major supplier with their new 'Guide Grip' style. Here are some photos of my 8N with 6.00 x 16 Firestone tires. Note the 16" wheels have four extra mounting holes for the two-piece wheel weights.
1948 FORD 8N w/FIRESTONE GUIDE GRIP 6.00 X 16 TIRES: