Just an update on the Dragway centres.
Called in at Dragway Woodridge today (back to the seventies!).
They do 2 types of Halibrand centres, one a soft alloy push through centre (which mine was) being glued into position - great for wheel balancing - Not
The 2nd type is a billet machined profile fitted to the wheel centre by allen nuts - bought myself 4 at $60 a piece.
Now to get rid of my excess glue