Very nice bcy. Did you happen to measure the Squish while you were in there and if so with the Piston proud what was it? With that entire package your going to have allot to show and tell so don't be shy I enjoy the read, pics and videos.
Marketing departments have put a whole bunch of names on things like Posi-Tractin back in the day then became Limited Slip from GM, Ford uses Trac-Lok in one place and in some option choices call it a Detroit Locker. I think the locking device your referring to is this for a Dana 60 rear end.
Now look how marketing attached a whole bunch of names. 16100_608.htm The above is more what I have in my Interceptor and in my 91 Silverado. a Clutch type limited slip Detroit Locker by Eaton corp. Eaton axle was a very long time customer of my father, they were out of Cleveland..