proportioning valve?

[arh]

i swapped aspen front discs on to my 73 duster. is there a later model car that i can buy a prop. valve from the local parts store that will work?

 

[65s]

You can get an adjustable Mopar Performance or Wilwood proportioning valve. Mopar just puts their sticker on the Wilwood product. They're great because you can adjust the pressure to the rear brakes whereas a factory unit is set to the weight/specs of the car it came from, so you don't want to use let's say a C-body valve on a little A-body.