Whether you’re tackling corrugated roads, rough terrain, or are planning to tow a caravan across the country,
you can’t go past a TJM GVM Suspension kit to improve every aspect of your drive.

You’ll be equipped for a
smoother, more comfortable ride while also improving road handling, braking ability and reducing noise and
The factory-engineered suspension on today’s 4WDS have load limitations, and in a lot of cases are not
capable of supporting the additional load bearing accessory demands used in the 4WD recreational and
commercial space. Installing a TJM GVM approved suspension kit will ensure the increased load demands are
catered for and the vehicle operates safely and legally.

This is the maximum your vehicle can weigh when
fully loaded as specified by the manufacturer. You
will usually find this GVM figure on the vehicle’s
weight placard (generally found in the driver’s door
opening) or in the owner’s manual. So GVM is the
Kerb Mass plus driver, passengers, luggage, pet dog,
esky, tool kit and whatever else you’re taking with
you. And if you’re towing something, GVM also
includes the Tow Ball Download.

TJM’s upgrade solutions for selected vehicle models
assist in compliance for increased certified GVM
ratings. The reasons why you may require a GVM
upgrade is to satisfy the following requirements:
OH&S, vehicle insurance, warranty issues and being
road legal. Through exhaustive and detailed testing,
the TJM GVM Upgrade Kits have been approved
by the Federal Department of Infrastructure and

Lovells GVM Upgrade

As Part of TJM’s partnership program, we would like to offer you our services as an approved Lovells GVM (Gross Vehicle Mass) Upgrade and BTC (Braked Towing Capacity) Upgrade installer.

The usable payload of many 4X4 vehicles today is minimal. Additional basic optional equipment and two or three adult male occupants will bring the vehicle close to its legal maximum weight (GVM) in many cases. Add long range fuel tanks, bull bars, winches, side steps, roof racks, recovery gear and a payload of camping equipment or an industrial type custom body and the vehicle will ultimately exceed the Original Equipment allowable Gross Vehicle Mass.

Original Equipment suspension is designed for comfort above all other considerations, thus load carrying and performance can be compromised. Whereas, Lovells design suspension systems with matched components for the ultimate in performance, load carrying, and handling.

Lovells GVM Upgrade suspension kits are fully track tested in conjunction with a Certified Automotive Engineering Signatory over many days to achieve maximum stability, braking performance, ADR (Australian Design Rules) conformity and operator comfort, before test data and documentation are forwarded to the DEPARTMENT of INFRASTRUCTURE, TRANSPORT, REGIONAL DEVELOPMENT and LOCAL GOVERNMENT for full analysis.

The National Codes and laws that must be met are extremely stringent and it can take up to 6 months for all data to be analysed in full by the Road Safety Engineers in Canberra. Once the Department is satisfied with all dynamic testing and theoretical data, it is only then that Lovells are issued with certification of Secondary Manufacture for GVM Upgrades.

Lovells GVM Upgrade Kits provide a solution for owners/managers of Toyota Landcruiser, Toyota Hilux and Nissan Patrol vehicles who have a need to carry loads which exceed the Original Equipment GVM specifications while at the same time meeting the practical and documentary compliance requirements of Work Safety, Police Licensing, Insurance, Lessors and Fleet Managers.

Lovells hold Compliance Plate Approval’s as a Second Stage Manufacturer of GVM Upgrades for Toyota, Nissan, Isuzu, Ford and Mazda:

  • CPA 25742: Toyota Landcruiser LC70 Cab Chassis/Troop Carrier to 3900kg.

(Original GVM is 3300kg)

  • CPA 25742: Toyota Landcruiser LC79 Cab Chassis Single Cab 5 Star ANCAP to 4200kg. (Original GVM is 3400kg)
  • CPA 25742-8: Toyota Landcruiser LC76 Series 4 door Wagon to 3660kg.

(Original GVM is 3000kg)

  • CPA 28971: Nissan Patrol Cab Chassis Y61 to 3900kg.

(Original GVM is 3400kg) – STATE COMPLIANCE ONLY

  • CPA 40257: Toyota Landcruiser 200 Series Wagon to 3800kg

(Original GVM is 3300kg)

  • CPA 42029: Toyota Hilux 150 Series 4×4 3/05-2015 to 3300kg

(up from standard GVM of 2710kg- Extra Cab, 2780kg- Dual Cab and 2835kg- Single Cab)-


  • CPA 46728: Ford Ranger 4×4 to 3500kg.

(Original GVM is 3200kg)

Lovells are the only GVM Upgrade SSM Approval holder to offer full certification of ESC/ESP system compliance at full GVM for the Ford Ranger.

  • CPA 47037: Mazda BT50 4×4 to 3500kg.

(Original GVM is 3200kg)

Lovells are the only GVM Upgrade SSM Approval holder to offer full certification of ESC/ESP system compliance at full GVM for the Mazda BT50.

  • CPA 47909: Toyota Hilux GUN126 Series 4×4 2015 on to 3500kg

(Original GVM of 3000kg)

Lovells are the only GVM Upgrade SSM FULL VOLUME Approval holder to offer full certification of ESC/ESP system compliance at full GVM for the Toyota  Hilux 4×4.

  • CPA 47908: Isuzu D Max 4×4 06/12 on to 3600kg

(Original GVM of 2950kg)

  • CPA 48305: Toyota Prado 150 Series 10/09 on to 3500kg

(Original GVM of 3000kg)

Lovells are the only GVM Upgrade SSM FULL VOLUME Approval holder to offer full certification of ESC/ESP system compliance at full GVM for the Toyota   Prado.


  • Need to protect Business, Managers from claims for breaches of OH&S rules and employee negligence.
  • Possibility of Insurance companies to void payout if the vehicle is loaded beyond approved GVM.
  • Possibility of litigation under common law if the vehicle is operated beyond its legal Load Limits.
  • Requirements to load vehicle and operate safely with weight beyond current Original Equipment limits for heavy and/or remote work.
Jmacx GVM Upgrade

We are approved suppliers and installers of the Jmacx coil spring and axle upgrade conversions for 70 Series LandCruisers. If you’re looking for the ultimate upgrade for your 76, 78 or 79 Series LandCruiser then look no further. Increased axle articulation, superior ride comfort, upgraded GVM and corrected wheel track are just some of the benefits the upgrade gives you. We offer a drive-in/drive-out service including full engineering approval that is recognised Australia wide.

Jmacx currently has a new GVM Upgrade package in development which will increase the GVM to 4200kg on 79 Series  Dual Cabs, Single cabs and 78 Series Troop carrier Landcruisers,  as well as a 3900kg increase to 76 series wagons. Stay tunned for more info.