GVM available
up to 4200kg
model dependent
Authorised dealer & fitter
Outback Armour GVM Upgrade
Increase your 4×4’s legal GVM while improving stability, control and suspension performance. Outback Armour kits are built and tested in Australia, and we supply, fit and arrange certification at our Kotara workshop, for pre- or post-registration.
Authorised dealer and fitter of Outback Armour GVM kits: supplied, fitted and certification coordinated under one roof.
Kit options
3550–4200kg
rating to suit your build
Damping settings
20+ adjustable
Adjustable Internal Bypass
Compliance
Pre & post rego
supplied & fitted
Why Outback Armour
Built and tested in Australia, engineered for the load.
Outback Armour designs and tests its GVM upgrades for the toughest Australian conditions, then backs the suspension with the compliance components that make the increase legal. You choose the shock valving to match how you actually drive, and we supply, fit and coordinate certification of the complete kit.
- 01
Built & tested in Australia
Engineered and proven for the toughest Australian conditions, from corrugated outback tracks to loaded highway touring.
- 02
Your choice of valving
Digressive (DSV) shocks tuned for endurance touring and fleet, or Adjustable Internal Bypass shocks with 20+ damping settings for varying loads on- and off-road.
- 03
A complete certified kit
Springs, shocks, air-bag and sway-bar hardware plus the compliance components, CAT 6 indicator and harness, reverse-light kit, GVM document package and tyre placard, pre- or post-registration.
Why upgrade
The benefits of an Outback Armour GVM upgrade
What a certified Outback Armour GVM upgrade actually delivers, on the road and off it.
Increased payload
Carry accessories, canopies, long-range tanks, drawers, rooftop setups, water, passengers and towing loads, legally.
Built & tested in Australia
Engineered and proven for the toughest Australian conditions, from corrugated tracks to loaded highway touring.
Choice of valving
Digressive (DSV) shocks for endurance touring and fleet, or Adjustable Internal Bypass with 20+ damping settings.
Stability & control
Heavy-duty springs, matched shocks and reinforced components improve stability, control and braking under load.
Legal & insured
Stay within a certified GVM to avoid fines, defect notices and denied insurance claims when you are overloaded.
Protects your 4WD
Reduces strain on the chassis, driveline, brakes and tyres, for fewer costly repairs and a longer vehicle life.
A complete certified kit
Springs, shocks, air-bag and sway-bar hardware plus CAT 6 indicator, reverse-light kit and GVM document package.
Pre or post-registration
Certified suspension solutions made easy, whether your vehicle is registered yet or already on the road.
Outback Armour GVM Upgrade Explained
A complete, certified kit, engineered as a system
As towing and load-carrying rules changed, the GVM upgrade became essential to staying compliant and protecting your insurance. An Outback Armour kit is more than springs and shocks, it is the full suspension plus the compliance package. Note this is a GVM upgrade, not a GCM upgrade.
Every vehicle leaves the factory with a built-in safety margin, and a heavy touring or work fit-out quickly eats into it. An Outback Armour GVM upgrade raises the legal ceiling and re-engineers the suspension to carry it, with springs rated to your new GVM, matched shocks, air-bag and sway-bar hardware, and the compliance components that make the increase road-legal.
The kit is assembled around your load rating and your choice of shock valving, so the ride, control and stability suit how you actually use the vehicle, loaded or empty.
Digressive-tuned DSV shocks
Digressive (DSV) shock valving delivers consistent, controlled damping built for endurance touring and fleet use, a set-and-forget choice tuned for long-distance load carrying and durability.
Best for touring & fleet
Adjustable Internal Bypass shocks
Adjustable Internal Bypass shocks give you 20+ damping settings so you can dial in compression to suit varying loads, on-road comfort or off-road control, without changing hardware.
Best for varied loads on- & off-roadWhat is in the kit
A complete, load-rated system, springs and shocks through to the compliance paperwork, chosen for your vehicle and your load rating rather than a one-size lift.
Front strut kits
Assembled front strut kits in your choice of Digressive (DSV) or Adjustable Internal Bypass (ADJ) valving.
Rear shocks, coils & hardware
Rear shocks and coils, coil-perch reinforcement, air-bag kit, bump-stop kit, plus sway bar and links.
Trail / Expedition / Expedition HD
Load ratings to match your build, from lighter touring loads through to heavy, permanently loaded rigs.
CAT 6 indicator & harness
CAT 6 indicator and wiring harness kit, part of the compliance package for a certified upgrade.
Auxiliary reverse-light kit
Auxiliary reverse-light kit supplied as part of the compliant GVM upgrade where required.
GVM document package
Owner’s manual supplement and tyre placard, so your new rating is documented on the vehicle.
Optional extras
Upper control arms, adjustable rear panhard rod, front sway bar and a stone-shield kit (ADJ) where you want them.
Fitment guide
Outback Armour GVM kits suitable for your 4×4
Every Outback Armour application we supply and fit, grouped by make, tap a make to see the GVM upgrade options for each model. Every rating is available with your choice of DSV or Adjustable Internal Bypass shocks.
Toyota 4 models
| Model / Series | GVM upgrade options |
|---|---|
| LandCruiser 300 Series | 3800 & 4200 kg |
| LandCruiser 78 Series | 3800 & 4200 kg |
| LandCruiser 79 Single & Dual Cab (J7) | 3800 & 4200 kg |
| HiLux N80 | 3550 & 3750 kg |
Ford 2 models
| Model / Series | GVM upgrade options |
|---|---|
| Ranger PY (Next-Gen) | 3600 & 3800 kg |
| Everest UB | 3550 & 3750 kg |
Isuzu 1 model
| Model / Series | GVM upgrade options |
|---|---|
| D-Max | 3550 & 3750 kg |
Volkswagen 1 model
| Model / Series | GVM upgrade options |
|---|---|
| Amarok NF | 3600 & 3800 kg |
Cannot see your vehicle, or not sure which rating and shock valving suit your build? We fit the full Outback Armour range. Tell us your vehicle and how you load it, and we will confirm the right kit, rating and certification path.
What is a GVM upgrade
Your build is probably already overweight.
Gross Vehicle Mass (GVM) is the legal maximum your 4×4 can weigh fully loaded, and it counts everything: the vehicle itself, bull bar, winch, fuel, water, food, people and the dog.
Built into your GVM is the tow-ball mass when towing, plus a rated capacity for each axle. Add a touring fit-out and you can blow past those limits before the fridge is even packed, which risks your insurance, your warranty and an inspection. An Outback Armour GVM upgrade raises the legal ceiling and re-engineers the suspension to safely carry it.
- More legal payload for accessories, touring and towing
- Restored ride, handling and braking under load
- Keeps your insurance and registration valid
- Matched to how you actually load your 4×4
Payload headroom · drag to load your rig
Factory
GVM Upgraded
GVM
GVM Upgraded
GVM
Loaded weight 3,800 kg
Legal with the Outback Armour upgrade
Within factory GVM
Headroom the upgrade adds
Beyond upgraded GVM
Drag the slider to your loaded weight. Example only: factory 3,280 kg, upgraded 4,200 kg; figures vary by vehicle.
Get a quote
All Four x 4 Spares: proud authorised Dealers & Fitters of Outback Armour GVM Upgrade Kits
Certified suspension solutions made easy for Pre-Registration and Post-Registration. Send your vehicle details and we will get a tailored, fitted-and-certified quote back to you.
Ready for a price?
Send us your vehicle details through our bookings and enquiries form and we will confirm the right Outback Armour kit, the load rating and shock valving to suit your build, and an all-in, fitted-and-certified price.
- Fitted to the manufacturer’s SSM approval, road-legal and ADR-compliant
- Engineering approval, modification plate and paperwork handled for you
- Pre-registration and post-registration kits available
- Fitted in-house by our specialist 4×4 technicians, not sublet
Why All Four x 4 Spares
A certified solution, not just a suspension job.
At All Four x 4 we’re proud to be authorised dealers and fitters of Outback Armour GVM Upgrade Kits. Working to Outback Armour’s Second Stage Manufacturer (SSM) approval, we supply, fit and coordinate certification of your vehicle’s GVM increase, all under one roof.
Based in Kotara, Newcastle, we look after customers right across NSW, from the Hunter Region through to the Central Coast and Sydney. Whether you drive a work ute, tow a heavy caravan or run a fleet, we provide expert installation, compliance certification and tailored suspension advice so your 4×4 is safe, capable and road-legal.
We fit each kit to the manufacturer’s approval and look after the documentation. For a vehicle already on the road, we arrange the independent licensed certifier who inspects, certifies the upgrade and issues the modification plate, so your increased GVM is recognised, insurable and ADR-compliant.
Servicing across NSW
NewcastleKotaraMaitlandLake Macquarie
Port StephensCessnockSingletonMuswellbrook
Hunter ValleyCentral CoastSydneyGreater NSW
Find us
The Hunter’s GVM upgrade workshop
Drop in, talk through your build, and book your Outback Armour GVM upgrade with the team that fits and certifies it on-site.
Address
All Four x 4 Service Centre
10 McDougall St, Kotara NSW 2289, Newcastle
10 McDougall St, Kotara NSW 2289, Newcastle
Phone
Hours
Mon to Fri, 7:30am to 5:00pm
5.0
An outstanding service from start to finish. This place has to be the happiest I’ve ever visited. From the moment you arrive to the moment you leave, smiles and absolute professionalism is for all to see. Thanks Michael for your wonderful work and the entire team who upgraded my GVM and GCM. If you need any assistance this team is for you, give them a call and you won’t need to worry, as you instantly feel safe and secure that their knowledge and expertise will guide you to the right decision. Thanks team.
GarethGoogle review
Would highly recommend All Four x 4 Service Centre. From the first contact with Michael to arrange the GVM upgrade, to Alex who served me on the day of upgrade and pickup the next day, all could not have been any friendlier and professional. Job done on time and even took the time to explain what had been done and what to expect. Great friendly team of staff. Dealing with your company was a pleasure from start to finish.
Mitch C.Google review
Thanks Adam, great service. All4x4 organised a GVM/GCM upgrade for my new D-MAX pre-rego, they liaised with the dealer and took care of all registration details. Seamless service. Very much appreciated.
Richard S.Google review
Common questions
Outback Armour GVM upgrades, answered
What is an Outback Armour GVM upgrade?
It is a complete, certified suspension package designed to safely increase your vehicle’s Gross Vehicle Mass (GVM) rating. Built and tested in Australia, the kit centres on load-rated springs and shocks, with air-bag and sway-bar hardware plus the compliance components, so you can legally carry more.
Digressive vs Adjustable Internal Bypass shocks, which should I choose?
Digressive (DSV) shocks deliver consistent, controlled damping and are a great set-and-forget choice for endurance touring and fleet use. Adjustable Internal Bypass shocks give you 20+ damping settings so you can dial in compression to suit varying loads, on- and off-road. Tell us how you use the vehicle and we will recommend the right valving.
What do the Trail, Expedition and Expedition HD load ratings mean?
They describe how much load the kit is engineered to carry. Trail suits lighter touring loads, Expedition steps up for heavier, regular loads, and Expedition HD is for the heaviest, permanently loaded rigs. We match the rating to how you actually load your 4×4.
What is the difference between pre-registration and post-registration?
A pre-registration upgrade is completed before the vehicle is first registered and is recognised nationally. A post-registration upgrade is fitted to a vehicle already on the road and certified by an engineer through the state modification process. We offer both and will advise which suits your vehicle and timing.
Will it affect my insurance or warranty?
A properly engineered, certified and plated GVM upgrade is designed to keep you compliant, which is exactly what protects your insurance, unlike running overloaded. We will walk you through how it interacts with your specific vehicle before any work begins.
How do I get a price?
Open any Get a quote form on this page with your vehicle details. We will confirm the right kit, load rating, shock valving and an all-in fitted-and-certified price. We quote before any work begins.
Explore the workshop
All our 4WD workshop services
A GVM upgrade is one part of what we do in Kotara. Browse the full workshop and jump straight to what your 4×4 needs.
4WD Service & Logbook
Minor, intermediate and major servicing with a comprehensive check-over and report. Logbook stamps that protect your warranty.
View servicing →4WD Repairs & Mechanical
Engine and driveline overhauls, gearbox & transfer rebuilds, diff centres, cooling, brakes and diesel repairs.
Explore repairs →Suspension Repairs & Upgrades
Worn-suspension repairs plus spring & shock upgrades and lift kits from Lovells, Tough Dog, Outback Armour and EFS.
Explore suspension →Independent Land Rover Specialist
Independent Land Rover, Range Rover, Defender and Discovery servicing, diagnostics and repairs. The dealer alternative.
Explore Land Rover →Accessory Fitting
Bull bars, snorkels, dual-battery systems, driving lights, UHF, long-range tanks and drawer fitouts. Fitted right.
Explore fitting → You’re hereGVM Upgrades
Lovells and certified GVM/GCM suspension upgrades for safe, legal load-carrying and towing capacity.
View GVM upgrades →Inspections & Reports
eSafety (pink slip) checks, pre-trip and pre-purchase inspections from an authorised NSW inspection station.
View inspections →Automatic Conversions
The Hunter’s specialists in 79 Series LandCruiser automatic conversions. Engineered and compliant.
View conversions →Find out what your rig can legally carry.
Get a tailored quote on an Outback Armour GVM upgrade, supplied, fitted and certified by the Hunter’s 4×4 specialists.
All Four x 4 Service Centre · Authorised Outback Armour dealer & fitter · Kotara, Newcastle NSW