I am trying to gather parts so I will have the option of using a solo seat as well as my dual seat on my '66 XLCH. There is a bracket on eBay with the casting number shown as 51910-52. My parts book and the supplement that I pulled up on this site says the part number should be 51901-52. Seller thinks the casting number and parts number may not agree. I can see there are options with different number for other years and for the K and XLH. I don't want to spend this much money for the wrong part. Can someone help me out here?
Thanks,
Mike