Thanks to SSEi95 we go the SC opened up and looked inside. The coupler was worn but not very bad. It will be replaced with one from ZZP ASAP.
When I got the unit home I tore it down the rest of the way. I discovered the rotor bearings in the back are worn... and the rotors themselves can be forced together (lightly) so they will 'clack' or touch either in or out of the SC housing. Not only that, but the rotors have scratch marks on them and so does the inside of the SC housing. Because the rotors and the SC walls are aluminum (?) they will scratch easily. Neither of them has real deep marks but they show scratch marks none the less.
This tells me I'm going to have to replace all the bearings in the SC and rebuild it from the ground up.
I haven't heard back from Rolling Performance about the parts I want to order (bearings, etc.) Does anyone know how to get in touch with RP or if this is the only source?
Does anyone have detailed instructions on the R&R of the SC bearings?
Does anyone know where I can get the correct bearing pullers and presses?
Can I use standard GM automotive grease in the bearings or do they require a higher grade due to the high RPM'*?
I appreciate all input on this guys... this is getting deep quick!