I had the combo you describe on my old bus (964C2 brakes). I was using the 944 stepped master cylinder but was not completely happy with it. I had plans to put in a SC master (20.6mm F/R) but never got around to it before I sold the bus. In bugs, I use stock 19mm MC for 944T, and that what's I would advise for your system.
Cheers,
Lanner
|