GVM UPGRADE

What is a Gross Vehicle Mass (GVM) Upgrade?

A GVM upgrade increases the maximum legal weight your vehicle can carry when fully loaded. GVM is set by the manufacturer, but Queensland’s LS11 modification code allows an Approved Person to re‑rate light vehicles (up to 4.5 t) after assessing that the chassis, suspension, brakes, steering, wheels and tyres can handle the extra load.
Under the Heavy Vehicle National Law, exceeding the stated GVM is an offence and may void insurance; staying compliant protects you and everyone else on the road.

Why Consider a GVM Upgrade?

Benefit	What it means in practice
More payload	Carry additional accessories (canopy, rooftop tent, water & fuel, recovery gear, toolboxes) without breaching legal limits.
Safer handling & braking	Correctly matched springs, shock absorbers and braking components restore or in most cases improve factory‑like dynamics, even when loaded.
On road compliance	A certified upgrade keeps your vehicle compliant for on road use.
Resale value	A blue‑plated, engineer‑certified GVM can make your 4×4 more attractive to future buyers.

Why Choose HYPE Engineering?

LS11‑certified Approved Person – we can legally inspect, test and sign off your upgrade for Transport & Main Roads.
Independent advice – no ties to suspension brands, so the solution is matched to your vehicle, not a kit list.
Mobile weighing & on‑site service – we can weigh your vehicle at your home, workplace or campsite (ideal for customers preparing for that big lap).
Full documentation – you receive a blue modification plate, LS11 certificate, and instructions on updating your registration records.

The HYPE GVM Upgrade Process

Consultation & Pre‑Weigh
We clarify your payload goals and weigh the vehicle as‑is (mobile service available).
Engineering Inspection
Chassis, suspension, brake capacity, steering, driveline, tyres and rims are checked against LS11 criteria.
Component Upgrades (we will work with your suspension component preferences)
We specify uprated springs, shocks, tyre & rim changes to meet load ratings.
Certification & Blue Plate
LS11 certificate issued, blue modification plate affixed, and you lodge the change with TMR.

Frequently Asked Questions

How much extra GVM can I gain?
Up to 10 % (110 % of OEM) is possible under LS11 pending evaluation of vehicle components and OEM axle ratings.

Will it affect my warranty?
OEM‑dealer written approval is advised for new vehicles; we’ll guide you through the discussion.

Do I need new tyres and rims?
Only if current load and speed ratings are insufficient for the higher axle loadings.

What about towing capacity (GCM)?
A GVM upgrade does not automatically raise Gross Combination Mass.

Can you do fleets?
Yes – we regularly certify emergency services, mine‑spec and tradie fleets across SE Qld.

Related Services

ATM Upgrades – increase caravan or trailer capacity (LS12).
Design & Certification – professional RPEQ Drafting and certification.
Mobile Vehicle Weighing – know your real‑world tare, payload and axle splits.

Ready to Lift Your Payload?

Let’s tailor a safe, legal upgrade so your vehicle works as hard as you do! Reach out to HYPE Engineering for expert guidance and professional service.

Visit our Contact Page to send us a message.