A complete 50mm lift for the Isuzu D-Max RG01 (2020-on) diesel, built around Formula 4x4 shocks and pre-assembled, height-adjustable ReadyStruts. It's developed to improve ride quality, handling and control across sealed roads, touring routes and off-road terrain.
The height-adjustable Formula 4x4 front struts are paired with King Springs front coils and SuperPro strut mounts, assembled into ReadyStruts and matched to your front load. At the rear, Formula 4x4 shocks work with a Formula 4x4 leaf spring kit matched to your rear load, supplied with matching extended U-bolts, a SuperPro greasable eye and shackle kit and a SuperPro rear brake line spacer kit. See every part in the What's in the kit tab.
Height-adjustable front struts
The front struts have three spring seat settings. The default is the lowest, and each step up raises the front by about 10-15mm.
If your accessory load changes after fitting, for example if you add a bull bar or winch later, the extra weight can pull the front below its lifted height. The spring seat lets the front ride height be trimmed back to suit.
Adjusting the height is a workshop job. The strut has to be removed and the front end disassembled, so have it done by a suspension professional, followed by a wheel alignment.
Why Formula 4x4 shocks
- Fade-free damping. Low-pressure nitrogen gas for fade-free performance, with a design that aids heat dissipation.
- SuperPro bushings. Fitted to all front struts, with tapered pegs for extra strength.
- Made for your vehicle. An application-specific design, with valve coding to suit differing spring rates, designed and built for Australian conditions.
Bump steer warning. Fitting this kit without supporting products to correct the front geometry (upper control arms and TRC6680 steering knuckles) can cause excessive bump steer and tyre wear on the D-MAX. The PRO version of this kit includes both. Learn about bump steer and the TRC6680 knuckles.
Pre-assembled ReadyStruts
Up front, the height-adjustable Formula 4x4 struts come pre-assembled with King Springs coil springs and SuperPro strut mounts as a matched pair of ready-to-fit struts. There's no spring-and-strut dismantling before fitting, which helps cut installation time.
Ride, handling and load
- Matched to your load. The springs create the lift, so choose your front load (bull bar and winch) and rear load when you build your kit. Getting this right gives a level stance and a comfortable ride, and stops the rear sagging.
- Accessories first. Where possible, fit permanent accessories like bars, winches, drawers and canopies before the lift kit so the suspension is matched correctly from the start.
- Professional fitting. We recommend installation by a suspension technician or mechanic with wheel alignment facilities.
Who it suits
D-MAX owners who want a comfortable, heavy-duty setup for daily driving, touring and recreational off-road use, with the option to trim the front ride height if their accessory load changes later. Check your vehicle in the Vehicle Fitment tab before you order.
What's in the kit
Every part in this kit, matched to your choices
Some parts are out of stock. This may delay dispatch.
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Preassembled Height Adjustable Ready Struts× 2
Each includes
- Front Shocks
- Front Strut Mounts
- Front Springs× 2Matches Front Load
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Rear Shock Absorbers× 2
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Rear Leaf Spring Kit× 1Matches Rear Load
Choose Rear Load above to see which one is included
Included with the Rear Leaf Spring Kit
- Extended U-Bolts× 4Matches Rear Load
- Greaseable Eye & Shackle Kit× 1
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Rear Brake Line Spacer Kit× 1
Formula 4x4 Lift Kit Warranty
5 Year / Unlimited kmFormula 4x4 lift kits are covered by a 5 Year / Unlimited km warranty. The standard warranty conditions below apply.
Proof of purchase
Proof of purchase is required, such as your order number. Keep the part and any related components until your claim is finalised.
Common exclusions
- Improper installation
- Abuse, or damage due to collision or neglect
- Modified or altered from the original design
- Corrosion or accelerated wear
- Used for an application it wasn't designed or advertised for
- Not purchased from Northman
How to make a claim
Fill in the Warranty Request form with your order number, the product, your vehicle details, how the vehicle is used and a description of the problem.
We'll reply within 3–5 business days and ask for clear photos or videos of the part, the problem area and how it's fitted.
Most claims are diagnosed from photos or videos.
ShippingWe do not ship lift kits to NT, WA or TAS.
Fits these vehicles
1 vehicle
- Series / chassis
- RG
- Years
- 2020-On
- Drive
- 4WD
Does this fit my car?
Pick any vehicle. If it is not on this product's fitment list, we cannot guarantee fitment.
Fitment notes
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Approx. 50mm liftFinal front and rear height depends on your permanent accessories, constant load and intended use.
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Match springs to your loadFront coils are matched to your bar/winch weight and the rear leaf spring kit to your constant rear load.
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Fit accessories firstWhere possible, fit bars, winches, drawers and canopies before the lift kit so the suspension is matched correctly.
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Professional fitting recommendedWe recommend installation by a suspension technician or mechanic, preferably with wheel alignment facilities.
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Wheel alignment requiredHave a wheel alignment done after fitting. We recommend a suspension technician or mechanic with alignment facilities.
Questions about fitment? Call 1800 292 911 before you order.
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