JMACX is known for providing comfort & stability in a load carrying vehicle.

JMACX ensures all coil conversions and other suspension systems have full legal federal government Australian Second Stage Manufacture (SSM) approval with full engineering and for JMACX Gross Vehicle Mass (GVM) upgrades for registered vehicles. 

JMACX has managed to deliver Australia’s largest Gross Vehicle Mass (GVM) increases with the appropriate axle load ratings for Toyota Landcruiser 70 Series (including leaf suspension GVM’s, coil conversions, the 4495GVM and 6×6 up to 5800GVM), 200 Series, 300 Series, and more recently Dodge Ram 1500 DS. Dodge Ram 1500 DT

From JMACX Offroad Solutions initial concept to provide a bolt-in coil conversion to the unbelievable growth of JMACX Offroad Solutions with over 30 authorised installation facilities in Australia these GVM upgrades have proven to be a popular choice. With the easy installation method (no welding required) and worldwide shipping options, JMACX has delivered thousands of coil conversions here in Australia and exported internationally.

These vehicles have stood the test of time driving millions of combined kilometres in some of the worlds’ harshest conditions. These kits have proven to go above and beyond and become the worlds’ number one coil conversion kit.