Swapping your front drum brakes to disc brakes is a worthwile easy upgrade.
Overview
If your 1200 has all-drum brakes, take note that disc brakes are:
- easier to work on
- Do not need adjustment every three months. Although it's true that discs do not stop any faster than correctly adjusted drums, who has time to adjust the brakes?
- More resistant to fading -- safer after repeated stops (they dissipate heat far better)
Swapping 1200 drums for discs is easy if you obtain the entire strut/spring/brake assemblies for both sides. Just bolt in the new assembly and bleed the front brakes.
If you already have a dual-outlet Brake Master Cylinder just remove the Residual Valve from the Front section. If your 1200 has a single-outlet master, for safety's sake obtain the dual-brake master cylinder along with its front brake hard-lines.
Why not bolt the disc brakes onto the drum-brake struts? Because the drum-brake struts do not have caliper mounting brackets.
Details
B110 "Standard" models used front drum brakes (most Aussie sedans are STD models). You can simply bolt the disc-brake struts together with brake assembly directly onto a STD car. You will also need the master cylinder and brake lines. All coupes came with disc brakes.
<insert steps here>