OK. I fixed the ABS red light being on by fitting new ABS rings inside the new rear brake drums. Fitting these magnetic ABS rings was easy and this re-enabled the ABS sensors to work inside the rear brake housing which removed the ABS warning light.
I completely replaced my K12s Rear Brake Drums (plus new bearings), brake shoes and cylinders and both hand brake cables. It took sometime but all went well.
However, I noticed that when I started to drive the K12 the ABS light was permanently on. I re-checked the rear ABS sensors, cables and...