Yes, Its a 2012 model Tachyon 3 with 8 speed rear cassette bought in February 2013.
I've cleaned and lubed the bearings several times and am familiar with the disassembly.
Nothing on the hub shows Shimano or any numbers, but the bike shop says its a "Shimano" type. They have a whole replacement wheel set, less cassette, for $90. I may go that route but thought I could just get a replacement hub body if I could ID it since there's nothing wrong with the rest of it.
I'm not cheap but just getting the hub body will save me about $60.
Thanks.