You can see in the (first listing) eBay pictures, that it’s a mix of both early and later model rockers by the centered and offset grooves in the rockers. Also the spare set of shafts look to be pretty worn. The second listing is for a 59-62 which will not work unless you change other items.
A fellow ‘bolter, Pre ‘68 Dave, has a website that shows all the differences and what changes need to be made to mix rockers assemblies from different years. Here is a
[LINK].
Sean, what is the issue with you rocker assembly? I fixed my sloppy rockers by buying new shafts.
