Like many muscle cars of its day, our '65 Cutlass came equipped with miserably inadequate four-wheel drum brakes from the factory. Before ripping out the crusty old hardware, the very first step is to mock-up the new brake system to ensure proper caliper clearance. Baer has online templates that can be used prior to placing an order, but nothing beats test-fitting the real thing. It's as simple as placing the caliper onto the rotor, then laying the mounting face of the rotor into the wheel. A minimum of .100-inch of clearance between the wheel spokes and caliper is recommended.