Borg and Beck type clutch with hydraulic throwout bearing?

I can't answer your question directly but when I ordered the Apex hydraulic kit through Passon, Jamie asked me if it was for a 18 or 23 spline and if I was using a diaphragm style or a B&B style. I had commented that I thought you could only use it with the diaphragm style and he said that the B&B just uses a different sized throw out bearing and he needed to know which style to order.

It was drop shipped from Eastside Motorsports, but they don't have anything for a 23 spline 833 listed on their site, so I'm not sure what they put together for me.

I believe its more or less the same kit that American Powertrain offers. It's a Wilwood master, 2 different sized reservoirs and the bearing and spacer look the same, the mounting bracket is a little different, but has the same adjustability in it. The out the door price was about $50 cheaper than the list price at American powertrain.