clutch disc

Anybody out there using the centerforce 384070 or Ram 300 Series clutch discs with a Spec pressure plate and LS1 stock flywheel.  Just looking at other options besides spec.  Presume any combination so long as the clutch disc is less than the pressure plate diameter with some margin should work but interested in if anybody has any first hand experience.  Spline count of 23 and the 1" diameter input shaft are the same on the dodges as they are the 944's as far as I can tell.

Also, in general, is anyone using the unsprung race hubs.  With a 6 puck engagement may not be all that bad, just don't know how destructive it may be to the synchros over time.

I don't have one of those but there is no reason why it would not work. You will need to measure for a shim behind the slave cylinder. Be careful with your choice of discs. I have a Sachs disc IIRC with a 23 X 1in spline that was originally for a dodge. It fits but the splines are a little loose on the input shaft splines. You may want to look at whatever disc TPC the sponsor of this site sells, I would assume it fits well.