Hi I have these 15" steel wheels on my '73 now i know the factory shipped with 14''; i am looking for a replacement steel rim , looks like they are 7'' wide or 7 1/4'' and the back spacing is 4'' or 4 1/8'' my question is where can i find a part number on this rim to confirm the sizes, and who sells new or used ones thanks.
![rim1.jpg rim1.jpg](https://www.forebodiesonly.com/forum/attachments/rim1-jpg.105305/)
![rim.jpg rim.jpg](https://www.forebodiesonly.com/forum/attachments/rim-jpg.105306/)