What is the wheel width for the two different types? From the Vehicle Information Kits: The 47-49 trucks used 4" wide wheels with 6.00-16 tires and , and 4.5" wide wheels with 6.50-16 tires. 50 information on wheels missing. 51-54 trucks used 4.5" wide wheels for either 6.00-16 or 6.50-16 tires 55.1 trucks used 4.5" for 6.00-16 tires and 5" wide wheels for 6.50-16 tires.
I believe the 4.5" wheels have the ridge. All the wheels I have have that extra ridge. [on edit] looking back at the first post, I misread where the ridge was. Mine have a ridge (or actually a depression) near the rim itself, not near the hubcap mounting point. Here's a pic (arrow shows the depression location.)
Last edited by klhansen; 04/16/20211:36 AM. Reason: added a photo
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.