I require to get the correct diameter cheap dogdish hubcap size for my brother-in-law's '78 with 15" steel wheels. I am trying to aquire the caps to put them on the truck when he visits the next time so I do not have a wheel to measure. Asking him to measure will not help as he is absolutely not mechanical - the reason I am here! I have referenced several versions of the gold bowtie in center of gold circle with 5 raised "feet" over black background: 10" or 10.5" diameter version and a 14.5" diameter version. Which is the 15" wheel version? Thanks very much in advance. Eric Edited Attachments: https://talk.classicparts.com/images/attachments/3c6b21ab02c050e8.jpg