How to get a GVM Upgrade

A step-by-step walkthrough of the GVM upgrade process, from working out if you need one to driving away legally certified.

Related services

ATM upgrades →

Heavy vehicle engineering (VSB6) →

Vehicle modification engineering →

From the blog

What is a GVM upgrade? →

Understanding VSB6 →

Understanding the vehicle certification process→

Ready to upgrade?

Servicing Northern Territory, Queensland, Western Australia, South Australia registered vehicles Australia wide

Frequently asked questions

How long does the engineering process take?

Timeframes vary depending on the complexity of the project and the documentation required. Straightforward inspections may be completed quickly, while more complex engineering assessments or custom modifications require additional analysis and documentation. Furthermore, difference in wait times are dependent on the regulatory body providing the approval. Each State and Territory has its own body, as does the federal system.

How much does a GVM upgrade cost?

Total cost = engineering certification +shop install. Engineering certification starts anywhere between $1,990 and $5,990 depending on your vehicle type, complexity, and whether there are type approvals available in your state or territory. Shop installs vary from $2,500 to beyond $50,000 depending again on type of vehicle and modifications required/desired. Call us to discuss.

Is your vehicle suitable for a GVM upgrade?

Possibly. It depends on the vehicle model, chassis, suspension, axle limits, brakes, tyres, and intended use. We review those factors to confirm whether a GVM upgrade is suitable and what certification is needed. See our GVM Upgrade Finder tool or call us to discuss.

How do GVM and GCM differ on your vehicle?

GVM is the maximum weight your vehicle can carry when loaded. GCM is the maximum combined weight of the tow vehicle and trailer together. A GVM upgrade may not change GCM. We can help you work out what applies to your setup.

Will a GVM upgrade increase my towing capacity?

Not necessarily. A GVM upgrade increases the maximum allowable weight of the vehicle itself, but it does not automatically increase towing capacity or Gross Combination Mass (GCM). Every vehicle has specific limitations, and these should be considered when planning modifications or towing heavier loads.

What information do I need to get a quote?

To provide accurate advice, we'll generally need:Vehicle make, model and yearVIN (if available)Registration state or territoryDetails of any existing or planned modificationsIntended use (touring, towing, commercial, etc.)Providing this information upfront helps us identify the most suitable engineering pathway and provide an accurate quotation.

What's the difference between pre-registration and post-registration GVM upgrades?

Pre-registration GVM upgrades are done before the vehicle is registered and are often part of a Second Stage of Manufacture (SSM). Post-registration upgrades are performed on already registered vehicles and may have different compliance requirements.

How much can I increase my GVM?

The amount you can increase your GVM depends on your vehicle's make, model, and structural capacity. A licensed engineer can assess your vehicle and determine the maximum allowable GVM.

Can I get a GVM upgrade after my vehicle is registered?

Yes, GVM upgrades can be performed on registered vehicles. However, the process and requirements may vary depending on your state or territory.

Does a GVM upgrade increase my GCM?

No, a GVM upgrade does not automatically increase your GCM (Gross Combination Mass). GCM is determined by the vehicle manufacturer and may require separate certification.

What is a GVM upgrade?

A GVM (Gross Vehicle Mass) upgrade increases the maximum allowable weight your vehicle can carry when fully loaded. This is achieved by modifying components such as suspension, brakes, and axles to meet higher load requirements.

Does a GVM upgrade affect insurance?

Yes, a GVM upgrade can affect your insurance. It's important to inform your insurer about the modification to ensure your policy remains valid.

Is a GVM upgrade legal in Australia?

Yes, GVM upgrades are legal in Australia, provided they comply with the Australian Design Rules (ADRs) and state or territory regulations. Certification by a licensed engineer is typically required.

Can I reverse a GVM upgrade?

Yes, a GVM upgrade can be reversed, but it requires re-certification to ensure the vehicle complies with its original specifications.

Does it affect warranty?

A GVM upgrade may affect your vehicle's warranty, especially if the modifications are not approved by the manufacturer. Check with your dealer or manufacturer for details.

Does it affect resale value?

A GVM upgrade can affect resale value positively or negatively, depending on the buyer's needs. Some buyers may value the increased capacity, while others may prefer an unmodified vehicle.

What modifications are normally required?

Common modifications for a GVM upgrade include upgrading the suspension, brakes, and axles to handle increased loads. Additional components may also be modified depending on the vehicle.

Seven steps to a successful GVM upgrade

A GVM upgrade legally raises your vehicle's Gross Vehicle Mass — the maximum weight it's allowed to carry fully loaded. Here's exactly how to get one done, step by step.

01

Weigh your vehicle as you actually load it

Fuel, water, gear, passengers and towball weight included. If that figure exceeds your factory GVM, you need an upgrade.

02

Check your state's rules

Confirm which standard applies (VSB14 for light vehicles, VSB6 for heavy) and whether your state adds its own requirements on top.

03

Talk to a vehicle engineer

Ask them to review your vehicle and confirm the target GVM rating available for your model.

04

Get a 4WD installer booked in to do your upgrade

Suspension, brakes and, where required, chassis components are upgraded to support the higher rating.

05

Get the engineer to inspect modifications are done correctly to spec

The vehicle is tested and inspected against the relevant standard before sign-off.

06

Collect your paperwork

The engineer will ensure you receive a package of documents that cover the installation, engineer, testing, inspection and provide you with a engineering certificate and modification plate to take with you for your updated vehicle registration requirements.

07

Update your vehicle registration

Take your vehicle and your package of information to your nearest motor vehicle registry to get your registration updated with your new GVM.

Related services

ATM upgrades →

Heavy vehicle certification (VSB6) →

Vehicle modification engineering →

From the blog

What is a GVM upgrade? →

Understanding VSB14→

Understanding VSB6 →

Understanding the vehicle certification process→

Ready to upgrade?

Available GVM upgrade (kg)

$1990

Starting cost

Toyota

Hilux 8GEN

3,050

3,300 or 3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser Prado 150 series

2,990

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 300 series

3,280

4,000 or 4,210

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 200 series

3,300

4,000 or 4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 100 series

3,180

3,580 or 3,900*

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 78 series (2003 - 2020)

3,300

4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 79 series (2003-2020)

3,300

4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Nissan

Y62 Patrol

3,500

4,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

F150

3,220

3,600 or 4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

Ranger 2 (2018 onwards)

3,200

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

ISUZU

MU-X (2021 onwards)

2,800

3,300

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

ISUZU

MU-X (2013-2020)

2,950

3,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Mazda

BT-50 (2012-2020)

3,200

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

F450

8,000

13,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

F350

4,490

7,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

F250

4,490

6,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

F150

3,265

4,100

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Ford

Ranger 2

3,200

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Cheverolet

Silverado 4500

8,000

10,400

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Cheverolet

Silverado 3500

4,490

6,700

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Cheverolet

Silverado 2500

4,490

6,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Cheverolet

Silverado 1500

3,300

4,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

RAM

RAM 4500

4,490

8,700

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

RAM

RAM 3500

4,490

6,011

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

RAM

RAM 2500

4,490

6,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

RAM

RAM 1500

3,450

4,000

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Hilux (GUN Variants)

3,000

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Hilux (KZN & KUN variants)

3,000

3,300

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser Prado 150 series

3,000

3,500

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser Prado 120 series

2,990

3,400

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 70 series (inc 75, 76, 78, 79 series)

3,300

4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 80 series

2,960

3,350

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 100 series

3,180/3,260

3,500/3,580 or 3,900*

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 200 series

3,300

4,200

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Toyota

Landcruiser 300 series

3,280

4,210

Starting GVM (kg)

Available GVM upgrade (kg)

Model

Make

Get your GVM upgrade certified right, the first time.

Contact KME Vehicle Engineering

Frequently asked questions

How long does the engineering process take?

Timeframes vary depending on the complexity of the project and the documentation required. Straightforward inspections may be completed quickly, while more complex engineering assessments or custom modifications require additional analysis and documentation. Furthermore, difference in wait times are dependent on the regulatory body providing the approval. Each State and Territory has its own body, as does the federal system.

How much does a GVM upgrade cost?

Total cost = engineering certification +shop install. Engineering certification starts anywhere between $1,990 and $5,990 depending on your vehicle type, complexity, and whether there are type approvals available in your state or territory. Shop installs vary from $2,500 to beyond $50,000 depending again on type of vehicle and modifications required/desired. Call us to discuss.

Is your vehicle suitable for a GVM upgrade?

Possibly. It depends on the vehicle model, chassis, suspension, axle limits, brakes, tyres, and intended use. We review those factors to confirm whether a GVM upgrade is suitable and what certification is needed. See our GVM Upgrade Finder tool or call us to discuss.

How do GVM and GCM differ on your vehicle?

GVM is the maximum weight your vehicle can carry when loaded. GCM is the maximum combined weight of the tow vehicle and trailer together. A GVM upgrade may not change GCM. We can help you work out what applies to your setup.

Will a GVM upgrade increase my towing capacity?

Not necessarily. A GVM upgrade increases the maximum allowable weight of the vehicle itself, but it does not automatically increase towing capacity or Gross Combination Mass (GCM). Every vehicle has specific limitations, and these should be considered when planning modifications or towing heavier loads.

What information do I need to get a quote?

To provide accurate advice, we'll generally need:Vehicle make, model and yearVIN (if available)Registration state or territoryDetails of any existing or planned modificationsIntended use (touring, towing, commercial, etc.)Providing this information upfront helps us identify the most suitable engineering pathway and provide an accurate quotation.

What's the difference between pre-registration and post-registration GVM upgrades?

Pre-registration GVM upgrades are done before the vehicle is registered and are often part of a Second Stage of Manufacture (SSM). Post-registration upgrades are performed on already registered vehicles and may have different compliance requirements.

How much can I increase my GVM?

The amount you can increase your GVM depends on your vehicle's make, model, and structural capacity. A licensed engineer can assess your vehicle and determine the maximum allowable GVM.

Can I get a GVM upgrade after my vehicle is registered?

Yes, GVM upgrades can be performed on registered vehicles. However, the process and requirements may vary depending on your state or territory.

Does a GVM upgrade increase my GCM?

No, a GVM upgrade does not automatically increase your GCM (Gross Combination Mass). GCM is determined by the vehicle manufacturer and may require separate certification.

What is a GVM upgrade?

A GVM (Gross Vehicle Mass) upgrade increases the maximum allowable weight your vehicle can carry when fully loaded. This is achieved by modifying components such as suspension, brakes, and axles to meet higher load requirements.

Does a GVM upgrade affect insurance?

Yes, a GVM upgrade can affect your insurance. It's important to inform your insurer about the modification to ensure your policy remains valid.

Is a GVM upgrade legal in Australia?

Yes, GVM upgrades are legal in Australia, provided they comply with the Australian Design Rules (ADRs) and state or territory regulations. Certification by a licensed engineer is typically required.

Can I reverse a GVM upgrade?

Yes, a GVM upgrade can be reversed, but it requires re-certification to ensure the vehicle complies with its original specifications.

Does it affect warranty?

A GVM upgrade may affect your vehicle's warranty, especially if the modifications are not approved by the manufacturer. Check with your dealer or manufacturer for details.

Does it affect resale value?

A GVM upgrade can affect resale value positively or negatively, depending on the buyer's needs. Some buyers may value the increased capacity, while others may prefer an unmodified vehicle.

What modifications are normally required?

Common modifications for a GVM upgrade include upgrading the suspension, brakes, and axles to handle increased loads. Additional components may also be modified depending on the vehicle.