We have two federally approved GVM upgrade options for Toyota Hilux owners: a 3740kg and a 4250kg upgrade. Enjoy the freedom to carry more while staying safe and compliant on the road!

Toyota Hilux GVM Upgrade Available at Payload Performance

Option #1: 3740kg GVM

Up to 690kg* GVM increase

  • Increases GVM from 3050kg to 3740kg (690kg increase)
  • Front axle rating up from 1480kg to 1620kg
  • Rear axle rating up from 1700kg to 2120kg
  • Maintains 3500kg towing capacity
  • Full GVM upgrade suspension kit with premium airbags
  • Approximately 40-50mm lift (load-dependent)
  • Chassis bracing for single and extra Cab variants
  • State-of-the-art laser wheel alignment front & rear
  • Available for pre and post-registration vehicles
  • SSM Federal certification if performed pre-registration
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Option #2: 4250kg GVM

Up to 1200kg* GVM increase

  • Lifts GVM from 3050kg to 4250kg (1200kg increase)
  • Front axle rating up from 1480kg to 1620kg
  • Rear axle rating increased from 1700kg to 2630kg
  • Maintains 3500kg towing capacity
  • Full GVM upgrade suspension kit with premium airbags
  • Approximately 40-50mm lift (load-dependent)
  • Full FEA designed & certified chassis bracing package
  • Full engineered diff strengthening package for maximum axle rating increase
  • State-of-the-art laser wheel alignment front & rear
  • Available for pre and post-registration vehicles
  • SSM Federal certification if performed pre-registration
  • Requires wheel and tyre upgrade (minimum 1315kg load rating)
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DMW Suspension Package

GVM upgrade includes the fitting of compliant components including upgraded shock absorbers with a choice of the simplicity of the no nonsense DMW IMS shock or the full adjustability of the remote reservoir MRA shock that can be tuned to handle the toughest roads. Paired with upgraded springs to handle the extra weight and an array of other components to improve both the ride and handling.

*Actual GVM increase & availability subject to specific model variants.

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Finite Element Analysis (FEA) & Brake Testing

As a certified second stage manufacturer, we go above and beyond to ensure your vehicle's safety and compliance. Our rigorous process involves extensive Finite Element Analysis (FEA) - a cutting-edge computer simulation technique that puts our GVM upgrade products through their paces. This virtual stress test examines every aspect, from component stress loading to fatigue analysis, ensuring the longevity and safety of your vehicle. 

But we don't stop there. We complement this engineering analysis with real-world brake testing, creating a comprehensive safety profile for your upgraded vehicle. This two-pronged approach not only meets federal approval standards but also gives you peace of mind. You can hit the road knowing your family is protected and your insurance coverage remains intact, even with the increased Gross Vehicle Mass. At the end of the day, it's about delivering a safer, more capable vehicle that you can trust.

*Based on factory 3050kg. Actual GVM increase & availability subject to specific model variants.

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Frequently Asked Questions

Carry more - Safely & Legally

The allowable payload on most modern 4WDs seems great on paper, but gets quickly used up when accessories, gear and passengers get loaded in. Remaining under the vehicles Gross Vehicle Mass (GVM) can seem almost impossible.

DMW is a recognised Second Stage Manufacturer (SSM) which allows us to develop and federally certify components to increase your vehicle's GVM.

This allows DMW or their authorised dealers to fit GVM kits for a variety of vehicles both Pre and Post Registration.

Maximise your allowable payload without risking your roadworthiness.

Each complete GVM kit has been extensively tested to ensure ADR compliance is maintained.

Safety and performance by design

Federal approval for GVM upgrades requires rigorous testing to ensure that the vehicle performs as well or better than when it left the original manufacturer. You can be sure that your DMW GVM upgraded 4WD will stop and handle well, even with the increased load on board.

Depending on the vehicle, the following testing is required:

  • Finite Element Analysis (FEA) testing: A check of the maximum load carrying capacity of the vehicle's axles, chassis or other critical components.
  • Brake Testing: Laden and Unladen brake testing as well as testing under partial system failure to comply with ADR35/00
  • ESC Testing: If required, this test ensures that the ESC system's response is the same or better than the original vehicle.

The GVM of any vehicle is the weight in kilograms that the manufacturer has specified as being the maximum that the vehicle can weigh when fully laden. DMW GVM upgrades allow a vehicle to be certified to carry a greater amount than the original manufacturer, without breaching applicable ADRs or laws. You can upgrade the GVM of a vehicle using either Federal approval or State based approval, depending on whether the vehicle has been registered or not.

  • If the vehicle has never been registered, Federal approval can be applied. The DMW GVM kit comes complete with an additional compliance plate which will be fixed to the vehicle.
  • If the vehicle is already registered, the data used in Federal compliance is used in conjunction with a vehicle inspection by an authorised State engineer to certify the vehicle. 

The answer to this commonly asked question is no! This doesn’t matter if the GVM is done pre or post rego either, some installers will tell you otherwise but the fact is that GCM is a state based decision. Please see below exert from the Administrators circular 0-4-6 published 29/06/2018,

 “As there are no ADRs that require the GCM of a light vehicle (ie a vehicle less than 4.5 tonnes Gross Vehicle Mass) to be certified by testing or evidence provided by a manufacturer, the Department does not assess, endorse or approve any purported change to a light vehicle’s GCM specification by a SSM.

It is also important to note that the Department does not restrict or prohibit GCM upgrades, as they are an in service matter that is the responsibility of state and territory registration authorities.”

Is my GCM automatically increased when a GVM upgrade is fitted?

The answer to this commonly asked question is no! This doesn’t matter if the GVM is done pre or post rego either, some installers will tell you otherwise but the fact is that GCM is a state based decision. Please see below exert from the Administrators circular 0-4-6 published 29/06/2018,

“As there are no ADRs that require the GCM of a light vehicle (ie a vehicle less than 4.5 tonnes Gross Vehicle Mass) to be certified by testing or evidence provided by a manufacturer, the Department does not assess, endorse or approve any purported change to a light vehicle’s GCM specification by a SSM.

It is also important to note that the Department does not restrict or prohibit GCM upgrades, as they are an in service matter that is the responsibility of state and territory registration authorities.”

QUEENSLAND - GCM and other modifications

GVM Upgrades of IN SERVICE vehicles (currently registered vehicles) – APPROVED. 

GVM Upgrades under SSM to vehicles PRIOR to initial registration – APPROVED.

GCM Upgrade to IN SERVICE vehicles (currently registered vehicles) – NOT APPROVED.

GCM Upgrade under SSM to vehicles PRIOR to initial registration – APPROVED.

WESTERN AUSTRALIA - GCM and other modifications

GVM Upgrades of IN-SERVICE vehicles (currently registered vehicles) – APPROVED.

GVM Upgrades under SSM of vehicles PRIOR to initial registration – APPROVED.

GCM Upgrade to IN SERVICE vehicles (currently registered vehicles) – NOT APPROVED

GCM Upgrade under SSM to vehicles PRIOR to initial registration.

**BTC, Braked Towing Capacity to IN SERVICE Vehicles – NOT APPROVED.

NSW, SOUTH AUSTRALIA, and VICTORIA - GCM and other modifications

GVM Upgrades of IN-SERVICE vehicles (currently registered vehicles) – APPROVED.

GVM Upgrades under SSM of vehicles PRIOR to initial registration – APPROVED.

GCM Upgrade to IN SERVICE vehicles (currently registered vehicles) – APPROVED.

GCM Upgrade under SSM to vehicles PRIOR to initial registration – APPROVED.

**BTC, Braked Towing Capacity to IN SERVICE Vehicles – APPROVED.

NOTE: It is up to the Compliance Signatory/Certifier as to whether they deem it satisfactory to apply a GVM and/or GCM increase to In-service vehicles. Please refer to your local certifier for further clarification.

ACT and NORTHERN TERRITORY - GCM and other modifications

GVM Upgrades of IN-SERVICE vehicles (currently registered vehicles) – APPROVED.

GVM Upgrades under SSM of vehicles PRIOR to initial registration – APPROVED.

GCM Upgrade to IN SERVICE vehicles (currently registered vehicles) – NOT APPROVED

GCM Upgrade under SSM to vehicles PRIOR to initial registration – APPROVED. STILL AN IN SERVICE DECISION SO NO GCM UPGRADE.

**BTC, Braked Towing Capacity to IN SERVICE Vehicles – NOT APPROVED.

TASMANIA - GCM and other modifications

GVM Upgrades of IN-SERVICE vehicles (currently registered vehicles) – APPROVED.

GVM Upgrades under SSM of vehicles PRIOR to initial registration – APPROVED.

GCM Upgrade to IN SERVICE vehicles (currently registered vehicles) – APPROVED

GCM Upgrade under SSM to vehicles PRIOR to initial registration – APPROVED.

**BTC, Braked Towing Capacity to IN SERVICE Vehicles – APPROVED

NOTE: It is up to the Compliance Signatory as to whether they deem it satisfactory to apply a GVM and/or GCM increase to In-service vehicles. Please refer to your local certifier for further clarification.

*A vehicle that is legally registered in one Australian state of Territory with a BTC, GVM or GCM upgrade, can legally travel in another state or Territory.

** Please note that as of the Administrator Circular released in June 2018 BTC upgrades are not permitted on light vehicles. Please see exert below.

“The towing capacity of a light vehicle expressed as Gross Combination Mass (GCM) rating or Rated Towing Capacity or Maximum Braked Towing Mass rating must not exceed the value set by the first stage manufacturer. Second stage manufacturers are not permitted to increase the towing capacity as part of an SSM IPA that results in GVM upgrade,” it stated in Section 10.6, of the 0-4-6 circular issued in June 2018

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