Hi everyone, there has been a lot of info on here about what you can and can't do to your 4WD. Different people have been told MANY different things by people in positions of authority.
Following what has been posted, and after a PM from Igutso, I have spoken to all the people I know who seem to know the business. The main informants are the guys from 'Stuarts Tyre Centre - Nerang' and 'Gold Coast 4x4 Accessories - ARB'. Between them they deal with all concievable requests regarding wheel/suspension/driveline modifications. Here is what they told me.
These restrictions apply to passenger and commercial vehicles.
TYRES:
You may only change the rolling DIAMETER of the wheel/tyre combo by a maximum of 15mm. That is increase or decrease!
There is no room for negotiation. If you have changed this diameter by more that 15mm your car is deemed to be UNROADWORTHY!!
SUSPENSION:
You may only increase/decrease your suspension by no more than 2in/50mm. (If decrease then lowest point must be more than 100mm from the road while vehicle is loaded.)
This measurement is supposed to coincide with a modification of no more than 1/3 of the standard bump stop height. Problem is no one knows (even the RTA/QLD Transport) exactly how to measure this.
Also, any form of lengthened or drop shackles are also outright illegal.
BODY BLOCKS:
Are ILLEGAL!!!! You may be told that you can do them, you may even get an engineer to sign off on them (about $1600 cost). You WON"T be able to get a transport inspector to put his name to it. The problem is that regardless of the vehicle being safe you are not going to find an inspector who is willing to put their rear end on the line. Cause if you end up rolling your vehicle you can sue him for allowing you to drive an unsafe/unroadworthy vehicle.
What is that you say? I live in NSW so these laws don't apply to me! I've got BAD news for you!!
NSW are about to adopt these very laws. That is if they haven't signed off already. (Was supposed to happen in January)
Now for the Uppercut.....
If you have a six inch suspension lift with 2 inch body lift and run 38in rubber, and have it approved under the old laws you are going to have to change it.
Thats right, iy doesn't matter if you have a certificate from the RTA to say your 4WD is ok, you are going to have to make it comply with the NEW laws. And you can't trick them by returning it to legal for the inspection and then putting all the good gear in later. THEY HAVE YOUR REGO NUMBER! They can call up your details and issue you with a yellow canary on the spot. Go get a trailer/tow truck to get your rig home.
If you have a competition rig you can get special permits to allow restricted access to public roads during competition.
This info has come from people who deal in tyres and modifications on a daily basis. The ARB boys have tried to get body blocks and drop shackles approved. They have got the engineering certificates but no one at QT will put their name to it so they couldn't get the modifications approved.
I am sorry if this upsets people. IT SURE AS HELL UPSETS ME!!!
I have put this on to add to the knowledge base of this site. I have learnt so much about fishing/camping/4WDing since joining I want to try and help everyone who has helped me, and those newbies who appear every other day.
Brett