GVM
Keep your 4WD legal, safe, and insured — even when it's fully loaded with touring gear.
Why You Need a GVM Upgrade
A Gross Vehicle Mass (GVM) upgrade is essential if you're loading your 4WD with bull bars, canopies, roof racks, drawers, and touring gear. Without one, you could be exceeding your vehicle's legal weight rating — putting your insurance, warranty, and safety at risk.
Most modern 4WDs come from the factory with very little payload capacity once you add accessories. A GVM upgrade increases your legal carrying capacity so you can load up properly and still be covered.
What's Involved
- Heavy-duty suspension upgrades (springs, shocks, or coilovers)
- Brake upgrades where required
- Full vehicle assessment and weighing
- Engineering compliance certification
- Registration update with SA Transport
Popular Vehicles We Upgrade
Fully Certified & Legal
Every GVM upgrade we install comes with full engineering compliance certification. This means your upgraded GVM is legally registered with SA Transport and your vehicle is covered by insurance when it's loaded to the new rated capacity.
We use GVM upgrade kits from trusted manufacturers including Ironman 4x4, engineered specifically for each vehicle model. No guesswork, no generic parts — everything is matched to your vehicle.
Need a GVM Upgrade?
Tell us your vehicle and what you're carrying. We'll recommend the right kit and give you a quote.
Get a Quote Browse Products