converting manual drum brakes to factory power front disc

[Marks1]

Mustang Steve sells a conversion kit if you're interested. I bought one but have not installed it yet. You'll need minimum 18" wheels to fit the 2015-2019 GT brakes on your 65-73

S550 Brakes on 65-73 Mustang - MustangSteve

S550 Brakes on 65-73 Mustang kit installs the large 2015-2019 front and rear brakes onto the classic Mustang, Falcon, Fairlane, Torino, Cougar

mustangsteve.com

This would defeat the purpose of having bought the complete stock set up from Jeff, (DropTop73),

 

[Bill Perkins]

I changed my 72 Coupe from factory front drum brakes to factory front disc brakes and used original parts from parts cars I parted out. My set up is all original and I had to change out the interior brake pedal support bracket that the four studs from the power brake booster attaches too. I was able to use factory brake lines from these parts cars as well as the disc brake proportion valve. I like the better stopping power I receive from the front disc brakes.