can I just change the ignition barrel in an AU wagonor do I have to change the hole stearing colum.

Which part needs changing?

Keyed barrel section or the whole ignition switch?

Either can be changed... The keyed barel comes out with the use of an allen key and the ignition key turned to accy...

The barel assembly is removed with use of a centre punch and hammer and the shear bolts can be purchased new from for to reinstall another back in your car...

Cheers,
Tim

thanks thats all I need to know.