Is it hard to convert the rear drum brakes to disc on a focus??

Materials probably looking at €500 and then fitting, won't be worth it for the benefits it would bring.

Toyotafanboi wrote: »

i would think if you bought second hand, you could acquire the parts for less than half that?

If it's a mk1 focus the rear disc setup is very rare as it was fitted to the 2.0 petrol and ST170 so good luck in finding that. The RS had a wider track so won't do. Rear discs were more common on the mk2.

You'll need to swap rear hubs complete with discs and calipers. You may have to swap rear arm. Also, master cylinder/servo will have to be swapped as well as some plumbing sorted. If the car has ABS, you'll probably need speed sensors, ABS module and the assorted wiring/reprogramming. Also, the insurance company will have to know.

OP, between 75% and 90% of the braking is done by the front brakes so if it's performance you want, look at the front brakes. To improve the brakes, the first thing is brake fluid change, check that rubber pipes are not swelling and fit decent pads. Only then, if you are still running out of brakes, look at uprated pads or upgrades kits (Hispec/Wilwood/AP/etc). If you are getting brake fade on the rear drums, Burton Power do updated brake shoes.