4x4 Upgrades Shop
Browse our selection of high quality 4×4 & 6×6 vehicle upgrades and accessories.
About 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. Leading the way in Australian manufacturing of high quality vehicle components.
Our customers benefit from a passionate team that delivers unsurpassed build quality and customer service. JMACX are the innovators of the 70 series coil conversion and chassis extensions. With a patent design (IP2020202596) JMACX has always been at the forefront of coil conversions for others to follow.
The JMACX brand is expanding to include other vehicles such as:
- RAM 1500
- Ford Ranger
- Landcruiser 200, 300 series
- Toyota Hilux
Upgrading armoured/emergency/rescue service vehicles gives JMACX a unique edge that you won’t find anywhere else. This scope also includes high GVM touring and work vehicles.
Featured Products
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- Sale!
JMACX 70 Series Brake Booster Upgrade
- Original price was: $700.00.$595.00Current price is: $595.00. inc GST
- Select options This product has multiple variants. The options may be chosen on the product page
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NPC 1300NM VDJ Clutch Kit
- $1,940.00 inc GST
- Add to cart
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JMACX Track Correction Leaf Diff
- $6,200.00 inc GST
- Select options This product has multiple variants. The options may be chosen on the product page
Vehicle Weight Calculator
GVM, BTC, GCM and Axel loads. You need to know why these are so important. You
have more than likely heard 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 expertise with thousands of completed coil conversions & suspension systems fitted 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.
Outstanding Quality
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.
Unparalleled Design
JMACX really is the industry leader in GVM upgrades, coil conversions, 6×6 conversions & 4wd suspension systems. 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 combined KMs on our GVM upgrades.
Unrivalled Handling & Stability
Our customers know the difference in stability and handling. It’s one thing to be able to carry a load, but to have the ability to do it with ultimate comfort and control is an objective that JMACX continually striving for.
Good Reasons To Choose JMACX
You’ll get the benefit of our expertise with thousands of completed coil conversions & suspension systems fitted 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.
Outstanding Quality
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.
Unparalleled Design
JMACX really is the industry leader in GVM upgrades, coil conversions, 6×6 conversions & 4wd suspension systems. 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 combined KMs on our GVM upgrades.
Unrivalled Handling & Stability
Our customers know the difference in stability and handling. It’s one thing to be able to carry a load, but to have the ability to do it with ultimate comfort and control is an objective that JMACX continually striving for.
JMACX Customer Reviews
We're proud of our products & the quality of our service
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