I've got Patrick's Saginaw conversion and am in the process of putting disc brakes on my '51.
I purchased a manual disc/drum MC and proportioning valve from CPP along with a mounting bracket. I had to modify the bracket (weld a plate to the top and drill new holes) to lower the MC location, welded metal to form an upside down "T" to which I bolted the PV.
Here's a link to the modified bracket that you can cut and paste.
http://s241.photobucket.com/albums/ff93/jal12147/1951%20Chevrolet%20Pick%20up/I also purchased a complete brake line kit from Inline Tube and am using all the lines with the exception of the 1/4" line that connected the old MC to the tee fitting on the passenger side. I have 2 "L" fittings to connect the lines I am still trying to bend and flare from the PV to the replaced original front and rear lines of the truck.
The lines enter the PV from the MC on the trans side and exit at the rear and front on the frame side. I have room between the shifter and master cylinder and trans crossmenber for everything to fit.
Hope this helps.
John
Milford, MI
