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FREQUENTLY ASKED QUESTIONS

Are GCM Upgrades Allowed in the NT?

No.


The Vehicle Standards Office does not recognise any change in GCM from the original, first stage manufacturer. This determination applies to both in-service and SSM upgrades that purport to increase the GCM.

Are GCM Upgrades Allowed in WA?

No.


The Department of Transport does not recognise any change in GCM from the original, first stage manufacturer. This determination applies to both in-service and SSM upgrades that purport to increase the GCM.

Click the button above for more information: (GCM in WA)

Are GCM Upgrades Allowed in SA

Yes.

The Department of Infrastructure and Transport does allow these under limited circumstances.

I have a LandCruiser but I don't know its GCM - how can I find out what it is?

For many years LandCruisers were produced without a specified GCM. This value is specified by the Manufacturer. If the manufacturer does not specify it, then your vehicle does not have a specified GCM. Typically people will simply add the GVM and the BTC together to get a pseudo GCM (if these were loaded to their maximums, then you can't theortically carry anymore without exceeding either your GVM or BTC so it is crude, but it works). But this is not the GCM for the vehicle as it doesn't have one. Where people get into disagreement about this is when a vehicle has a GVM Upgrade, and then the question is, what is the new pseudo GCM. Is it the old pseudo GCM (original GVM + original BTC), or is it a new value (new GVM + original BTC). The truth is, it doesn't matter, as the vehicle does not have a GCM...

To know if your vehicle has a specified GCM, it will be based on the age of the vehicle - see attached links for 2x 70 Series spec sheets - 1 from 2016 showing no GCM listed, and one from 2018 showing a GCM. You can look these up for Prados and the 200 Series as well.

FAQ: FAQ
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