The newly acquired P38 is fitted with a set of 19" L322 wheels and, from the shuddering at speed when I drove it home, I strongly suspected that no spigot rings had been fitted. These are needed to keep the wheels central on the hub as the wheel nuts are not conical and the hub centre on the P38 is slightly smaller than that on an L322. I've bought the required rings but if anyone else has fitted them, do the rings fit on the hub centre or in the wheels?