The JMACX Difference
Setting the standards for GVM upgrades, coil conversions & 4x4 accessories across Australia.
JMACX was originally founded on a dedicated desire to improve the ride, stability & load capacity of Australia’s most loved series of vehicles.
Our customers benefit from a dedicated team that delivers unsurpassed build quality and customer service. We’ve always been at the forefront of GVM upgrades & coil conversions and our experience upgrading military & rescue vehicles gives JMACX a unique edge that you won;t find anywhere else.
Vehicle Weight Calculator
GVM, BTC, GCM and Axel loads. You need to know why these are so important.
You’ve more then likely herd these terms before. But what do they actually mean and how do they affect your vehicle?
Good Reasons To Choose JMACX
You’ll get the benefit of our experience with hundreds of completed coil conversions done in commercial, military, outback tourers and work vehicles.
Our experience combined with millions of kilometres driven in some of the worlds harshest conditions shows that our patented GVM kit has proven itself to go above and beyond.
Our GVM upgrades have the highest Axle load rating in Australia. This allows you to practically load and use the full potential of your vehicle’s GVM upgrade.
JMACX really is the industry leader in GVM upgrades & coil conversions. Our customers receive the strongest coil conversion on the market backed by full engineering & certification.
Proven Over Millions of KMs
Our track record speaks for itself. Our customers have driven millions of KMs on our GVM upgrades and they know that they’re able to depend on it when the need arises.
Unrivalled Handling & Stability
Our customers know the difference in stability and handling. If you’ve ever needed to overtake whilst pulling a load, you’ll appreciate the finer details of the JMACX GVM upgrades.
JMACX Customer Reviews
We're proud of our products & the quality of our service
We appreciate being informed of the latest updates and developments in high quality GVM upgrades, coil conversions & 4×4 accessories. So if you like to know when we’re having a sale or get informed about changes in legislation, sign up below. We promise you’ll only receive high quality information that we’d appreciate ourselves.
Sign up to our newsletter