Commodore disc's up to the VP fit as they(Holden) used the same wheel bearings from HR right thru to the VP,thats where the bearing sizes where changed.
PCD was changed and the centre bore was also changed. The centre bore is the most important part as the wheel is supported on the centre bore and the wheel studs / nuts actually just hold the wheel in place, the cars weight is taken on the centre bore, so those lovely imported chrome wheels which.
John M
PS FCGuy what did your wheel man say when you asked for it in writing?
?