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Welcome to Jmacx

JMACX is the innovator and industry leader when it comes to coil conversions and GVM upgrades for the ultimate Landcruiser. Giving you the strongest coil conversion on the market with unrivalled stability and handling.

GVM upgrades, with the highest axle load rating in Australia, allowing you to practically load and use the full potential of the GVM upgrade in your vehicle.

With hundreds of conversions done in commercial, military, outback tourers and work vehicles, combined with millions  kilometres driven in some of the worlds harshest condition, this patented kit has proven itself to go above and beyond. No wonder it is the worlds number one trusted coil conversion and Australia’s only bolt in conversion.

 

click on the tabs below to find a package that best suits your needs .

LC70 Series 3900 GVM Leaf Spring

Jmacx now has a leaf sprung gvm option for the landcruiser that ticks all the boxes. track correction, higher axle load capacity, improved braking, vehicle stability. All though the leaf spring kits can’t compare to the ride comfort of a coil conversion they are a great option for those who want to stay with the leaf springs and need a true and usable 3900 GVM upgrade kit. Here are some key points as to what you can get from a Jmacx 3900 leaf kit.

  • Increase GVM to 3900kg
  • Maintain BTC of 3500kg at full 3900 GVM (Post Rego Vehicles Is State Dependent For This)
  • Axle load increase to 2850kg
  • This kit can come with either 400kg TO 600KG  or  600kg+ leaf packs
  • SSM Number:50368(visit rvcs website to confirm Specs)
  • (for more information on axle loads,BTC and GVM please read our article here CALCULATE YOUR WEIGHT)

The biggest advantage to the Jmacx 3900 leaf kit is the high rear axle load capacity of 2850kg this combined with the GVM upgrade allows your landcruiser to be loaded practically in the rear to its full potential.   

All Jmacx products have full engineering to ensure you are safe and legal on Australian roads. To see what comes in your Jmacx 3900 leaf kit use the kit builder bellow to get a quote today.

LC70 Series 4200 GVM Leaf Spring

Jmacx now has a gvm option for the leaf sprung vehicles that ticks all the boxes. track correction, correct high axle load capacity, improved braking, vehicle stability .All though the leaf spring kits can’t compare to the ride comfort of a coil conversion they are a great option for those who want to stay with the leaf springs and need a true GVM upgrade. Here are some key points as to what you can get from a Jmacx 4200gvm leaf kit.

  • Increase GVM to 4200kg
  • Maintain BTC of 3500kg at full 4200 GVM (Post Rego Vehicles Is State Dependent For This)
  • Axle load increase to 2850kg
  • This kit comes with 900KG constant leaf packs
  • SSM Number:50368(visit rvcs website to confirm Specs)
  • (for more information on axle loads,BTC and GVM please read our article here CALCULATE YOUR WEIGHT)

The biggest advantage to the Jmacx 4200 leaf kit is the high rear axle load capacity of 2850kg this combined with the GVM upgrade allows your landcruiser to be loaded practically in the rear to its full potential.   

All Jmacx products have full engineering to ensure you are safe and legal on Australian roads. To see what comes in your Jmacx 4200 leaf kit use the kit builder bellow to get a quote today.