Gross Vehicle Mass upgrades

If you regularly carry loads, tow caravans or are packing your 4×4 up for an extended trip, you may be exceeding your gross vehicle mass (GVM), which is illegal and potentially dangerous. With a GVM upgrade you can increase your vehicle’s weight carrying capacity to accommodate your extra load.

Eddy Gobby at DAPCO Bunbury is licensed as a 2nd stage manufacturer, meaning we can legally increase the weight carrying capacity of suitable vehicles. Check out our GVM Upgrade gallery.

Our GVM Upgrades are:

Get A Quote for your GVM Upgrade.

GVM Upgrade Kits For popular makes & models

NOW AVAILABLE: GVM Upgrades for 100 Series IFS Toyota Landcruiser, 105 Series Toyota Landcruiser & Nissan Y61 Patrol.


GVM FAQs Understanding GVM Upgrades in WA

What is Gross Vehicle Mass?

A Gross Vehicle Mass (GVM) upgrade is an independently engineered and tested suspension solution which allows users to increase the payload of their vehicle from what the manufacturer originally designated. 

If you are carrying common items such as tools, tool boxes, cargo, bull bars, winches, towbars, extra fuel, passengers, recovery gear and tow ball load such as a boat, caravan or camper trailer you will be adding weight to your vehicle and decreasing the available payload. Every vehicle has an official legally allocated GVM which cannot be exceeded.

Do I need to upgrade my GVM?

Without upgrading your vehicles GVM you may be driving a vehicle that doesn’t meet safety regulations or legal requirements.

Our 3 convenient locations


Mon - Fri: 8am - 5pm, Sat: 8am - 1pm
128 Blair Street (Opposite Bunnings)
9792 1799 View Location


Mon - Fri: 8am - 5pm
Cnr Blue Wren and Albatross
9725 0877 View Location