Ive got a 1988 90 and I have put on a set of disco alloys , what size wheel spacers would I need so that I can fit the center plastic trims? It has the drum brakes on the rear, and when I got the alloy fitted by a trye company they didnt fit one of the rear wheels flat on the hub and I had people flashing me as the alloy was ovulating, someone told me that that disco wheels are quite a precise is that true as there is someone slling 4mm spacers on ebay and I know this wont allow me to fit the center caps but I thought it may stop that problem happening again, any thought would be appreciated,del