Changes to Pre-Rego GVM Upgrades in Australia
What’s Changed & Why It Matters?
As of January 2026, we’re currently delivering one of the last pre-rego GVM upgrades of its kind on a V8 LandCruiser 79 Series.
This build includes:
- 4" suspension lift
- 35" tyres
- 4495kg GVM
- 4000kg towing capacity
- 7995kg GCM
- JMACX electric in-cab shock absorbers
- OTA shock controller mount and snap-fit module mount (under seat)
This configuration represents the end of an era for pre-registration GVM upgrades on certain vehicles.
Why Are These Changes Happening?
The change comes down to updates to ADR 80/04 emissions standards.
Vehicles in the NB1 category must now meet Euro 6 emissions compliance. With the Toyota V8 engine discontinued, it’s highly unlikely these rules will be revised to allow previous upgrade pathways.
In short:
- The emissions rules have change
- The V8 is no longer in production
- Pre-rego approval options are now limited
What Does This Mean If You’re Looking at a GVM Upgrade?
While pre-rego options have tightened, GVM upgrades are still very much available, just through different pathways.
Your Current Options?
Post-Registration GVM Upgrades
- At Mick Tighe 4x4 & Outdoor, currently Ironman 4x4 & JMACX now has approvals for post-rego GVM and GCM upgrades on selected models
- This allows compliant upgrades after the vehicle is registered
NB2 Category Conversions
- A 4505kg GVM upgrade is available for the 79 Series Dual Cab with a JMACX Kit
- Supports 4" lift and 35" tyres
- Reclassifies the vehicle from NB1 to NB2 category
Important to note:
- NB2 vehicles require a truck licence
- 0.00% alcohol limit applies
This pathway suits customers who need higher load capacity and understand the licensing and compliance requirements.
Vehicles Still Eligible for Pre-Rego GVM Upgrades?
We continue to offer pre-registration GVM upgrades on the following platforms:
- Toyota LandCruiser 300 Series
- Toyota 250 Series Prado
- Ford Ranger
- INEOS Grenadier
Each platform has its own limits and approval requirements, which we’ll walk you through before any work begins.
The Takeaway
- Pre-rego V8 GVM upgrades are effectively finished
- Post-rego and NB2 pathways are now the solution
- There are still strong, compliant options depending on your vehicle and intended use
- Getting the advice before you buy or modify is more important than ever
If you’re planning a build or weighing up a GVM upgrade, speak with our team early. The rules have changed, but the right setup is still achievable with the correct approvals.