Got two pans myself, '57 and '58. Have worked on and built old Harley's since my teen age years. These companies reverse engineer a component and don't use quality parts and this is what you get. You won't be disappointed with Cycle Electric.Shortbus that did happen with the polarizing no where in the instructions does it say to disconnect. After that costly error I studied a little and found the generator needs polarizing and not the regulator Thanks