n Goodwin wanted power disc brakes all around. The Javelin came with factory fourpiston front discs, but he converted them to late-1970s AMC Concord vented disc brakes for improved stopping power. The stock 1970 brakes are not only harder to find but also use nonvented rotors, so they don’t expel the heat as well as a vented rotor. Upgrading makes it easier and cheaper to buy replacement parts. Rear disc brakes came with the Ford 9-inch rear Goodwin sourced. An adjustable proportioning valve was added for fine-tuning frontto-back stopping power.
“Most of these upgrades can be easily purchased at any auto parts store”