4×4 Suspension

4×4 Suspension

Lift kits & GVM upgrades and widely differ for every application, weight, vehicle model and can vary depending on terrain you will be predominantly driving on. Just Autos can supply a wide range of suspension upgrades inc. full complied GVM upgrades (pre-registration & post-registration) & ADR approved lift kits to suit a wide range of vehicle.

Jmacx Suspension

Just Autos is a certified dealer & fitter of a wide range of GVM upgrades from Jmacx suspension, Jmacx suspension has some of the highest rated GVM upgrades for the Toyota platform with option to even fit Kings 2.5 suspension to upgrade ride quality

Diff upgrades

Jmacx supplies a wide range of diff upgrades for the Toyota platform inc. diff correction for the 79 series, Diff upgrades for load carrying capacity & also upgrade for the 200 series diff housings.


Yes JMACX, manufacture a leaf diff and axle upgrade kit that addresses increased axle load rating, track correction and stronger axles while still bolting to factory leafs & mounting points

All Installations will require engineer inspection & Certification for each vehicle. JMACX will supply LB2 documentation for the diff upgrade directly to your certifying engineering or department of transport.

Between $300-$500 (Engineer Dependent)

No, Jmacx retains all factory components inc. seals, brake lines etc. if ever needed to be replaced

Jmacx Diff Housings are fully fabricated units that exceed the strength of the factory original unit. JMACX Axles are the strongest production manufactured axle for Toyota Landcruiser available

The Leaf Diff usually can be completed in 5-6hrs but will require time to allow test driving & pre delivery check which means will usually be a 2 day turn around

Yes, all upgraded diff housings come powder-coated black standard but you can choose a different colour from the Dulux powder-coat colour chart.

No, usually as long as it is engineered certified. Bur it is up to each individual to check with their insurer. (Generally, insurers only require the vehicle to be legal.)

4×4 Suspension

Upgrade and Performance Experts

Just Autos Diesel Performance is based in Nambour, North of Brisbane on the Sunshine Coast in Queensland, Australia.

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Unleash the power potential in your Toyota’s engine with our range of custom performance tuning services and variety of vehicle upgrades, mods and more!