Well a bit of news bouncing around about QLD now allowing GCM upgrades after the vehicle is registered, mind you still a lot of hoops to jump through and if your vehicle has independant suspension I'm pretty sure you can foprget about upping the GCM............ I have read the new LS16 and probably have to read it another dozen times...
Here's a few links;
news report; https://www.aaaa.com.au/industry-advocacy/aaaa-welcomes-landmark-gross-combination-mass-code-in-qld/
and the TMR LS16 ; https://www.publications.qld.gov.au...2-96d8-4b67-a3b2-0aa9433aea4f?inner_span=True
Here's a few links;
news report; https://www.aaaa.com.au/industry-advocacy/aaaa-welcomes-landmark-gross-combination-mass-code-in-qld/
and the TMR LS16 ; https://www.publications.qld.gov.au...2-96d8-4b67-a3b2-0aa9433aea4f?inner_span=True