:frusty::frusty:.... so that's the explanation then

could'nt figure out why i've got much different voltage readings between front and rear axle with nanocom above 30mph on a friend's car although the resistance of sensors was only 14 -22 ohm different...he replaced both front hubs with some cheap ebay ones... i put it on the air gap as the rears were the same age like replaced fronts but he didnt replace all 4 cos there was no play in the rear ones... so blaming the rear ones i recommended him to replace them both aswell and he did with the same cheap ones and everything came back to normal... except the fact that there's a bigger error in the speedo reading.
somebody shoot those guys who are selling such hubs