I have an 84 Srambler with PB, 1977 Jeep Disc Brakes on the front and a Dana 60 with big drums on the rear. I run my stock Master Cylinder and Booster. Stops great, but my front brakes do most of the work, causing my jeep to nose dive (shackle reversal), even at slow speeds.

Question - who makes an adjustable proportioning valve? I figured this would allow me to solve the problem. Ideas?

You can get one from Summit

Wilwood also makes them for drag cars but they can be adapted for any vehicle. Just installed mine on my 4Runner. Brakes work much better now. <IMG SRC="smilies/biggrin.gif" border="0">