Disc/disc vs. Disc/drum Masters

[68Formula]

What is the difference between a 4 wheel disc Master and a Front Disc master only?

I read in some places it's not necessary to change over as long as you have an adjustable pressure valve and others say it needs to be done.

I switched from 4-wheel drum to front disc already. I have the Baer Track discs, their master, and a stock 13" booster. I used an adjustable prop valve.

Now I have a rearend that came with LT1 rear discs setup already installed.

Thanks.

[NovaPwr]

http://www.mpbrakes.com/technical-support/reference-master-cylinders.cfm

This may help answer your questions.

[68Formula]

Thanks. I checked it out and another link in the Brakes section.

I just called Baer (since it was their master I used) and they said the MC supplied is designed to work with the exact rear calipers I have anyway. And since I was already using the prop valve, there is nothing to change. Very good news.