The wipers on my 72 Bay were not working which I tracked down to a seized motor. The problem is in getting replacements I've now got the later style connection i.e. with plug not a loom. I connected up the wires corresponding to the numbers on the switch, but it has caused a few problems. Firstly the switch goes from OFF-FAST-SLOW and fuse now blows after a short time of running. I'm assuming the wiring just need connecting but differently, can anyone tell me how?