GVM upgrades for light and heavy vehicles 

Engineering certification of a Chevrolet Silverado 1500 GVM increase from 3,300 kg to 3,750 kg in Western Australia, with rear suspension upgrades, revised rear axle capacity and brake testing. GCM remained unchanged.

Engineering certification of a Chevrolet Silverado 2500 fitted with a Fox BDS 3-inch suspension kit and 35-inch tyres, with GVM re-rated to 5,534 kg in Western Australia. Assessment included non-standard wheels and tyres, suspension, braking and towing-system checks under VSB 6.

Engineering certification of a Chevrolet Silverado 2500 canopy/body modification together with a GVM re-rating from 5,148 kg to 5,500 kg in Western Australia. The project included vehicle-specific inspection, brake testing and ADR/VSB 6 assessment while retaining the OEM suspension and wheels.

Engineering certification of a Chevrolet Silverado 2500 HD GVM upgrade to 5,800 kg in Western Australia, with Bilstein suspension components, additional rear leaf support, airbags and non-standard LT295/70R18 wheels and tyres assessed under VSB 6.

Engineering certification of a Chevrolet Silverado 2500 category change from NB1 to NB2 with GVM re-rated from 4,536 kg to 5,171 kg in Western Australia. The vehicle used a Rough Country 3-inch Vertex suspension kit, 35-inch tyres and revised GVM/GCM ratings assessed under VSB 6.

Engineering certification of a 2016 Ford Transit GVM increase from 3,550 kg to 4,000 kg in the Northern Territory. Rear Sumo Spring and Super Spring assistance was assessed with chassis analysis and brake checks under VSB 6 Sections F and S. Original axle ratings remained unchanged; no GCM increase is claimed.

Engineering certification of a RAM 1500 DT GVM upgrade to 4,300 kg, with JMACX rear suspension and differential housing plus airbag assistance. Inspection, road testing and ESC/ABS testing supported the Northern Territory certification; GCM remained unchanged.

Engineering certification of a RAM 2500 GVM increase from 5,460 kg to 5,800 kg and rear axle rating increase from 2,740 kg to 3,078 kg. The WA-certified package included replacement suspension, airbag assistance and a long-range fuel tank under VSB 6 A2, F1, G4, M1, P1, S1 and S2.

Engineering certification of a RAM 2500 GVM increase from 4,495 kg to 5,460 kg and category change from NB1 to NB2 in Western Australia. Assessed under VSB 6 G4, P1, S1 and S2 within the original axle ratings, with no suspension modification required.

Vehicle-specific certification of a 2024 Ford F-150 GVM upgrade to 4,200 kg under the Northern Territory VS24 process, with the vehicle category revised from NA to NB1. The evidence records the modification certification, not automatic interstate acceptance.

Engineering certification of a 2025 RAM 2500 GVM increase from 4,495 kg to 6,000 kg, including a revised 3,300 kg rear axle/suspension rating. Assessed under VSB 6 codes D3, E3, F1, G4, P1, S1 and S2; GCM remained 12,750 kg.

Queensland-certified Isuzu NPS 300 heavy-vehicle upgrade: GVM increased from 6,000 kg to 7,500 kg and GCM from 9,500 kg to 11,000 kg following vehicle-specific engineering assessment and brake testing under VSB 6 codes G4, S1, S2 and S3.

Pre-registration LC300 GR Sport Desert SSM project with 4,000 kg GVM, 7,800 kg GCM, 4,000 kg braked towing capacity and five seats. Upgraded springs and rear airbag assistance with original GR Sport shock absorbers retained. Ratings apply to this specific configuration.

Engineering certification of a 2025 Toyota LandCruiser 300 Series GVM upgrade to 4,200 kg, with the vehicle category revised to NB1 for Northern Territory registration.

Engineering certification of a 2021 Toyota LandCruiser 200 Series GVM upgrade to 4,000 kg, completed for Northern Territory registration.

Engineering certification of a 2003 Toyota LandCruiser 100 Series GVM upgrade to 3,580 kg, completed for Northern Territory registration.

Engineering certification of a factory RAM 2500 category change from NB1 to NB2, with a revised GVM of 4,622 kg under VSB 6 S1.

Engineering certification of an Isuzu NPS 75-155 GVM increase from 7,500 kg to 7,995 kg and GCM increase from 11,000 kg to 12,000 kg under VSB 6 G4, S1, S2 and S3.

Engineering certification of a Chevrolet Silverado 2500 GVM increase from 5,148 kg to 5,500 kg, including front and rear suspension, axle and fuel-tank modifications.

Engineering certification of a 2016 Toyota Prado 150 Series GVM upgrade to 3,500 kg, completed for Northern Territory registration.

Engineering certification of a 2022 Toyota Hilux GVM upgrade to 3,500 kg under an approved Second Stage Manufacturer schedule, completed for Northern Territory registration.

Engineering assessment and certification of an Isuzu NPS 75-155 GVM increase from 7,500 kg to 8,000 kg and GCM increase from 11,000 kg to 12,000 kg, with a super-single wheel conversion under VSB 6 G4, S1, S2 and S3.

GVM re-rating for a 2017 Mazda BT-50 via upgraded suspension under the QLD LS15/LS11 code, with revised tyre placard and load capacity labelling.

Assessment of an Isuzu NPS 75 tow pin under a defined 4.5-tonne static load case. The model returned a safety factor of 3.7 against yield for the nominated component and assumptions—not a separate towing or recovery rating.

GVM upgrade for a Toyota Landcruiser 79 Series, taking GVM from 3,510kg to 4,500kg. Engineered with ARB Old Man Emu suspension and an extended rear axle, backed by Finite Element Analysis of the differential and axle to confirm structural strength at the increased rating. Approved by NT Transport under VSB 6.

Upgraded suspension, brake system certification, GVM upgrade to 6t, axle re-rating for this Silverado 2500.

Toyota Prado GVM upgrade to 3,500kg — suspension and braking assessment and certification to support increased touring payload.

Pre-registration Toyota LandCruiser 300 Series commercial build-out — rearmost seats removed and toolbox/drawer system installed, rear cargo barrier fitted, HD springs and shock absorbers, additional ADR-compliant lighting. Re-rated to GVM 4,210kg, GCM 7,800kg, BTC 4,000kg, and classified as a commercial vehicle (ATO Private Tax Ruling, no LCT).

Dodge RAM 3500 — GVM upgrade to 6.2t with a 3,500kg rear axle rating, certified under VSB6 (D3, E3, F1, G4, J1, M1, P1, S1, S2) with full engineering evidence package covering suspension substitution, brake system re-certification, and ADR compliance across all applicable rules.

Chassis, suspension and brake upgrade to support a fully touring-fitted setup.