Hi Tom, Welcome! - The first 15" wheel I know of being used by Chev. was the 15" artillery style wheel used as standard equipment on the 1937-42 3/4-ton pickups. This same 15" wheel was also an option on the 1/2-tons in those same years. So I would say the first 15" wheel came way back in 1937!


To be long remembered as he's cruising in
The Passing Lane