JMACX
Coil conversions & GVM upgrades for serious tourers
JMACX Offroad Solutions is the Australian innovator behind the most respected coil conversions and GVM upgrades for 70 Series LandCruisers and heavy touring 4WDs. Designed and engineered in Queensland, the Alpha range delivers reference-grade ride quality and load capacity for builds that actually live offroad.
What sets JMACX apart
The JMACX gear we fit
- 0179 Series Coil ConversionIndustry-leading rear coil conversion for the 79
- 02Alpha Suspension Lift KitsVehicle-specific 2" and 3" lift packages
- 03GVM Upgrade KitsPre and second stage GVM packages with engineering
- 04Diff & Driveline UpgradesHeavy-duty diffs, axles and driveline parts
Why Offroad Animal trusts JMACX
- The benchmark for 70 Series coil conversions in Australia
- Vehicle-specific tuning — not one-size-fits-all springs
- Full engineering certification for GVM upgrades
Common questions about JMACX
Do JMACX GVM upgrades come with engineering certification?+
Yes. JMACX pre-rego and second-stage GVM upgrades are supplied with all required engineering and compliance documentation for legal registration in Australia.
Will a JMACX coil conversion improve my 79 Series ride?+
Significantly. Replacing the factory leaf-sprung rear with the JMACX coil conversion transforms ride quality, articulation and load behaviour — without sacrificing payload.
Spec your build with JMACX
Talk to our Brisbane workshop team for vehicle-specific fitment, pricing and lead times — or browse our full product range.