I have a front disc and rear drum brake setup. Pedal was low and mushy, master cylinder under floor, so I put in new master cylinder ( larger capacity) and I am installing a 2 LB residual valve in line between master cylinder and proportioning valve. In rear lines I am installing 10 LB residual valve between master cylinder and proportioning valve. Is this correct place or should it be AFTER the proportioning valve?? I called ECI and tech man said " Install as close to master cylinder as possible" I am wondering if installing before proportioning valve will that location cause a malfunction of that valve?? Any expirence either way?? DAVE SHANK

the valve will work fine the residual valve must be placed as close to the master as possible, the old masters has a residual valve in them, now they use external type.