The question is simple, are the knock off hubs for Zenith and Dayton wire wheels interchangeable? A friend has some Zenith big and littles, but the hubs are Dayton. They seem to fit. He needs hubs with the 5.5" bolt pattern, which his current hubs do not have. He called Zenith multiple times, no answer, ever. He called Dayton, they pressed the issue, and when they heard he wanted the Dayton 5.5" hubs for use with Zenith wheels, they refused to sell them due to liability issues. They gave him some minor measurement differences. Is using Dayton hubs in Zenith wheels a safety issue for real? If not, can he get them drilled for the 5.5" pattern? He fears there isn't enough room to do that. Thanks for any help on this problem.