When it comes to carrying heavy loads safely and legally, the Outback Armour GVM Upgrade is engineered for the toughest Australian conditions. Each kit is designed to increase your vehicle’s legal Gross Vehicle Mass (GVM) rating while improving stability, control, and suspension performance. Built and tested in Australia, Outback Armour GVM Upgrade kits use heavy-duty springs, matched shock absorbers, and reinforced components to handle demanding work, touring, and towing requirements without compromising compliance.

Furthermore, Outback Armour GVM Upgrades provides certified suspension solutions made easy for Pre-Registration and Post-Registration.  

All Four x 4 Spares is an authorised Outback Armour GVM Upgrade installer based in Newcastle, NSW. We service customers from across New South Wales, from the Hunter Region, including Newcastle, Maitland, Lake Macquarie, Port Stephens, Cessnock, Singleton, Muswellbrook, to the Central Coast and Sydney. Whether you operate a work ute, tow a heavy caravan, or run a fleet of service vehicles, we provide expert installation, compliance certification, and tailored suspension advice to ensure your vehicle meets both your needs and legal obligations.

With decades of 4WD suspension experience, our team specialises in fitting and certifying Outback Armour GVM Upgrade kits for a wide range of popular 4WDs, including Ford Ranger, Ford Everest, Toyota Landcruiser 300 Series, Toyota Landcruiser 78 Series, Toyota Landcruiser 79 Dual & Single Cab, Toyota Hilux, Volkswagen Amarok, and Isuzu D-MAX.

Learn more about our Service Centre:

Select your vehicle below (not every vehicle is currently featured) to explore vehicle-specific Outback Armour GVM Upgrade Kits

Choose your preferred shock absorbers to suit your requirements:

Please note that the list of components may vary depending on the vehicle model and specific GVM upgrade requirements. For reference, below is the typical list of components included in a Outback Armour 3800 kg GVM upgrade suitable for a Toyota LandCruiser 300 Series. For detailed information tailored to your vehicle and upgrade options, please don’t hesitate to contact our team

SUSPENSION KITS - FRONT

ASSEMBLED STRUT KITS
Ready to install in the vehicle, assembled strut kits are complete replacement items pre-configured by the Outback Armour tech team.
Shock absorbers available in either Digressive (DSV) or Adjustable Internal Bypass (ADJ) construction.

FRONT LOAD OPTIONS
Trail - OEM bumper (unladen)
Expedition - Approx 50 - 100 kg constant front load
Expedition HD - Approx 100 - 150kg constant front load

KIT INCLUSIONS
Shock Absorbers (DSV or ADJ) - 2 each
Strut Top Mounts - 2 each
Coil Springs - 1 pair

SUSPENSION KITS - REAR

Shock absorbers available in either Digressive (DSV) or Adjustable Internal Bypass (ADJ) construction

REAR LOAD OPTIONS:
Expedition 50mm lift (@ approx 150kg load)*150kg minimum rear load recommended.
Expedition HD: 50mm lift (@ approx 300kg load) *300kg minimum rear load required.

KIT INCLUSIONS
Shock Absorbers (DSV or ADJ) - 2 each
Coil Springs - 1 pair
Coil Perch Reinforcement Kit - 1 kit
Air Bag Kit - 1 kit
Rear Bump Stop Kit - 1 kit
Rear Sway Bar - 1 each
Rear Sway Bar Links - 2 each

GVM COMPONENTS REQUIRED

The following components/kits are required for approval.

COMPONENTS & KITS
CAT 6 Indicator & Wiring Harness Kit - 1kit
Auxiliary Reverse Light Kit - 1 kit
GVM Document Package (Owners’ Manual Supplement & Tyre Placard) - 1kit

OPTIONAL EXTRAS

The following components /kits are recommended:

KIT INCLUSIONS
Upper Control Arms - 1kit
Front Bump Stop Kit - 1kit
Front Sway Bar - 1 each
Shock Absorber Stone Shield Kit (suits ADJ only) - 1 kit
Adjustable Rear Panhard Rod - 1 each