Originally Posted by readdirections
my 68 mustang fastback gt 390 has front disc brakes. my son rebuilt the rear end and installed 94 mustang disc brakes and a rebuilt power booster and master cylinder. with a front and rear disc system, do i still need to install a proportioning valve for the rear? also on the master cylinder is the front chamber for the front brakes and the back chamber for the back brakes. i tore this car down 20 years ago removed all brake and gas lines and did not take pictures of the brake system, dumb me. thanks for any input.
It should be like this the front or the smaller reservoir on the M/C is for the rear and the larger is for the front. As far as the proportion valve i would use one just make sure you get one for disc brakes not for drum. JMO
If my memory is correct there is a difference between the two valves.