Ron,they fit a 15x7 rally just like the O.E.M.,no gap.The only difference is the retainer,other than that you can't tell them apart.That outfit used to run periodic specials on them at one time,I bought them as low as $75 a set plus shipping,not sure if they still do.
If they are the same as the ones in the ebay ad, more than just the retainer is different.
The ebay ad ones have the typical Chevrolet large oval valve stem opening very distinguishable from Mopar ( picture from the ebay listing )
Original 15 x 7 Mopar ring below it.
