Cause a picture says a thousand words. Unfortuately, they don't always explain the background story. In a nutshell, I finally got the centre bores machined out on the 13" steelies I've had for ages so they now actually fit on the hubs. Props to Dr. Wheels down on the coast for the machinework. Threw them straight on the lathe for me, took all of 20 minutes and only cost $40 to do the lot.