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GVM upgrade

Isuzu D-Max (RG1, 2021 on)

Outback Armour's GVM upgrade for the Isuzu D-Max (RG1, 2021 on): a complete approved kit that lifts the legal weight your vehicle can carry. We fit it in Miami and complete the certification paperwork.

New GVM
3,550 kg or 3,750 kg
Original GVM
3,100 kg
Lift front / rear
30mm / 35mm
Registration
Pre or post rego

Call or click for fitted price Fitting and certification are quoted for your vehicle.

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  • Fitted in our Miami workshop. We only fit parts we supply.
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We text you a fitted price within one business day.

Options

Trail (front)

OEM bumper, unladen

Expedition (front)

approx 50 to 100kg constant front load, such as a steel bullbar

Expedition HD (front)

approx 100 to 150kg constant front load, such as a steel bullbar and winch

Expedition XHD (rear, 3,550 kg GVM)

35mm lift at approx 500kg; 300kg minimum rear load required

Expedition XXHD (rear, 3,550 kg GVM)

35mm lift at approx 850kg; 500kg minimum rear load required

Expedition XXHD (rear, 3,750 kg GVM)

35mm lift at approx 850kg; 500kg minimum rear load required

Digressive (DSV) shocks

Outback Armour: designed for endurance and to resist shock fade and heat, specifically for touring and fleet vehicles, with comfort and control on corrugations and rough roads.

Adjustable Internal Bypass (ADJ) shocks

Outback Armour: 20+ damping settings to set and forget or adjust; suits vehicles with varying loads, on and off road.

Ready to book it in? Tell us your vehicle and what you carry, and we text you a fitted price within one business day.

Get your fitted priceCall (07) 5572 1711

Front end

Front components

Strut Top Mount - Colorado & D-Max
Strut Top Mount - Colorado & D-MaxOASU0719001Strut top mount that locates the strut in the body.
Strut - Front - Dmax  (2012-2020 & MY2021) - Digressive (DSV)
Strut - Front - Dmax (2012-2020 & MY2021) - Digressive (DSV)OASU0840007-DSVFront strut that controls wheel movement and carries the coil spring.
Strut - Front - Colorado RG & D-Max 2012+ - Adjustable (GVM)
Strut - Front - Colorado RG & D-Max 2012 on - Adjustable (GVM)OASU0865007-GVMFront strut that controls wheel movement and carries the coil spring.
Coil Springs - Front - Hilux 150 & Prado 120/150
Coil Springs - Front - Hilux 150 & Prado 120/150OASU1015001Front coil spring that sets ride height and carries front accessory weight.
Coil Springs - Front - Hilux 150 & Prado 120/150 - Expedition
Coil Springs - Front - Hilux 150 & Prado 120/150 - ExpeditionOASU1015003Front coil spring that sets ride height and carries front accessory weight.
Bump Stop Kit - Front - Multi Fit (2x per kit)
Bump Stop Kit - Front - Multi Fit (2x per kit)OASU4210202Bump stops that limit suspension travel and cushion full compression.
Fixed Upper Control Arm Kit - DMAX/BT50 (2021+) & MU-X (7/2021+)
Fixed Upper Control Arm Kit - DMAX/BT50 (2021 on) & MU-X (2021 on)OASU3519003-FUpper control arm that restores caster and ball joint angle after a lift.
Diff Drop Kit - D-Max 09/2020+
Diff Drop Kit - D-Max 2020 onOASU3221001Diff drop kit that keeps CV angles in range after a front lift.

Rear end

Rear components

Shock Absorber - Rear - Dmax MY2021 - Digressive (DSV)
Shock Absorber - Rear - Dmax MY2021 - Digressive (DSV)OASU0140085-DSVShock absorber that controls spring movement and keeps the tyres in contact on rough ground.
Shock Absorber - Rear - D-Max (MY2021) - Adjustable (GVM)
Shock Absorber - Rear - D-Max (MY2021) - Adjustable (GVM)OASU0165105-GVMShock absorber that controls spring movement and keeps the tyres in contact on rough ground.
Leaf Spring - D-Max/Colorado (2012+) - Expedition XHD
Leaf Spring - D-Max/Colorado (2012 on) - Expedition XHDOASU1133004Rear leaf spring pack that sets ride height and carries the rear load.
Leaf Spring - D-Max/Colorado (2012+) - Expedition XXHD
Leaf Spring - D-Max/Colorado (2012 on) - Expedition XXHDOASU1133006Rear leaf spring pack that sets ride height and carries the rear load.
Greasable Shackle - D-Max (MY2021)
Greasable Shackle - D-Max (MY2021)OASU2400067Greasable shackle that lets the leaf spring change length as it flexes.
Greasable Pin - suits various
Greasable Pin - suits variousOASU2500042Spring pin that locates the leaf spring eye.
Leaf Spring Bush Kit - Colorado RG & D-Max (2012+)
Leaf Spring Bush Kit - Colorado RG & D-Max (2012 on)OASU210027KPolyurethane bushes for the leaf spring eyes and shackles.
U-Bolt - M14 x 62 ID (SQR) x 195 L
U-Bolt - M14 x 62 ID (SQR) x 195 LOASU2362002U bolts that clamp the leaf spring to the axle.
Show all 11 rear parts
Bump Stop Kit - Rear - Leaf Spring (2x per kit)
Bump Stop Kit - Rear - Leaf Spring (2x per kit)OASU4210004Bump stops that limit suspension travel and cushion full compression.
Brake Line Drop Bracket - D-Max (2021) & Mazda BT-50 (2020)
Brake Line Drop Bracket - D-Max (2021) & Mazda BT-50 (2020)OASU3733003Brake line part that gives the brakes room after the lift.
Brake line extension rear - MQ/MR Triton, D-Max & BT-50
Brake line extension rear - MQ/MR Triton, D-Max & BT-50OASU3747002Brake line part that gives the brakes room after the lift.

Compliance

Certification items

CAT 6 Indicator Wiring Harness Kit - D-max (2020-04/2024) & BT-50 - LED Headlights
CAT 6 Indicator Wiring Harness Kit - D-max (2020-04/2024) & BT-50 - LED Headlights OASU4533001Side indicator kit needed for ADR compliance after the upgrade.
D-max MY21 GVM - CAT 6 Indicator with Plug (suits model with indicators in the guard)
D-max MY21 GVM - CAT 6 Indicator with Plug (suits model with indicators in the guard) OASU4533002Side indicator kit needed for ADR compliance after the upgrade.
CAT 6 Indicator Wiring Harness Kit - D-max (04/2024+)
CAT 6 Indicator Wiring Harness Kit - D-max (2024 on)OASU4533003Side indicator kit needed for ADR compliance after the upgrade.
GVM Upgrade - SSM Approval (AU)OAGVM-SSM-AUFederal SSM approval used for pre registration GVM upgrades.
Outback Armour SVI Plate (AU)OASVIPLATE-AUSecure vehicle identification plate fitted as part of the GVM approval.
Vehicle Modification Plate - (NT)OAMODPLATE-NTState modification plate used for post registration approvals.
Vehicle Modification Plate - (WA)OAMODPLATE-WAState modification plate used for post registration approvals.
GVM Document Pack (OMS+TPL) - D-Max RG1 3550kg GVM
GVM Document Pack (OMS+TPL) - D-Max RG1 3550kg GVMOAGVM064513-3550GVM document pack for the upgraded vehicle.
GVM Document Pack (OMS+TPL) - D-Max RG1 3750kg GVM
GVM Document Pack (OMS+TPL) - D-Max RG1 3750kg GVMOAGVM064513-3750GVM document pack for the upgraded vehicle.

Specifications

Original GVMup to 3,100 kg (varies by variant)
New GVM3,550 kg or 3,750 kg
Front axle1,450 kg to 1,700 kg
Rear axle1,910 kg to 2,150 kg
GCMup to 6,000 kg; unchanged by the upgrade
Towingup to 3,500 kg braked (unchanged). Towing at full GVM: 1,950 kg or more (3,550 kg upgrade), 1,750 kg or more (3,750 kg upgrade)
Lift front30mm
Lift rear35mm
RegistrationPre or post registration (pre registration under the federal SSM approval through selected Outback Armour dealers; post registration as a state based approval, independently certified)
ApprovalVTA-064513 (VTA, federal SSM approval)

Warranty

Outback Armour warranty

5 years, unlimited km on shocks, struts, coil and leaf springs, U-bolts, shackles and pins. Strut and shock bushes 1 year. Upper control arms 1 year or 20,000 km. Lifts over 50 mm are excluded.

Fitted by us in Miami and backed by the Opposite Lock network nationwide.

Fitted and certified in Miami

We fit and certify it on site

We fit Outback Armour GVM upgrades at our Miami workshop and complete the certification on site, so you drive away with the paperwork done.

An approved GVM kit has to be fitted complete, under its own kit part number, to be certified. We fit every part in the approved kit for your exact vehicle, and nothing is swapped or left out.

How GVM upgrades work, pre and post registration

Ready to book it in? Tell us your vehicle and what you carry, and we text you a fitted price within one business day.

Get your fitted priceCall (07) 5572 1711

Video

Isuzu Dmax Outback Armour 3350kg GVM Upgrade Kit Rundown
GVM Upgrade 3750kg Isuzu Dmax Kit Rundown
Outback Armour suspension range: the DSV
Suspension FYI Series ADJ Range

Ready to book it in? Tell us your vehicle and what you carry, and we text you a fitted price within one business day.

Get your fitted priceCall (07) 5572 1711

Prices are the supplier's recommended retail price for the part, plus fitment by our technicians, excluding freight. Freight is charged where stock is shipped to us for your job. Every part is fitted in our Miami workshop and covered by the maker's warranty plus our workmanship guarantee. Prices checked 21 October 2026.

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