JMACX 300 Series GVM Upgrades

Building on their years of experience with the 79 and 200 Series Landcruiser, Jmacx have developed a range of legal GVM upgrade packages designed to suit the Toyota 300 Series Landcruiser. These kits are the perfect foundation for a vehicle build, allowing users to safely and legally carry more weight due to the added payload.

Unlike simple shock and spring lift kit’s, the Jmacx kits include a range of additional components to correct the lifted vehicles’ suspension geometry, making it safer on and offroad whilst also delivering a more refined driving experience.

You can learn more about these packages below or contact us for a quote.

Components
3800kg Kit
4200kg Kit
Options
Installation

300 series with Jmacx upgrades

3800kg Kit

Enabling a considerable increase over the 300 Series’ factory GVM, the Jmacx 3800kg GVM upgrade is ideal for safely carrying more weight whilst also lifting the vehicle and enabling the option to legally fit larger tyres.

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Jmacx Alpha remote-res shocks (rear)

Jmacx coil springs (rear)

Airbag Man airbag kit (rear)

Adjustable panhard rod (rear)

Extended sway bar links (rear)

Installation labour

Jmacx Alpha remote res coil overs (front)

Upper control arms (front)

CAT 5-6 indicator Kit

Jmacx reverse light kit

Wheel alignment

All associated engineering

* Standard inclusions vary depending on vehicle model and selected options. Contact our sales team for a quote to suit your vehicle.

4200kg Kit

Taking it up a notch from the 3800kg kit, the Jmacx 4200kg GVM upgrade for the 300 Series Landcruiser is the go-to option for those requiring additional payload. To achieve the higher 4200kg GVM rating we replace the factory diff housing with an upgraded Jmacx diff housing and load rated wheels and tyres.

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3800kg kit inclusions +

Jmacx upgraded diff housing (rear)

Jmacx lower trailing arms (rear)

Flares and mudflaps

Load rated wheels

Load rated tyres

* Standard inclusions vary depending on vehicle model and selected options. Contact our sales team for a quote to suit your vehicle.

Options

With all Jmacx 300 Series GVM upgrades there is also a range of additional options and upgrades to help set-up your vehicle exactly how you’d like. Not sure what option is right for you? Contact our sales team to discuss your needs with an expert.

Lift Height

Choose from either two inches or three inches of lift height.

Tyre Size

Available with either standard, 33”, 34” or 35” tyre sizes.

Electric Shocks

Swap the standard manual shocks for in-cab electric shocks.

Watch

Want to see what goes into installing a Jmacx 300 Series GVM upgrade? Watch this!

Frequently Asked Questions

My vehicle is already registered, can I still do the GVM upgrade?

Yes, if possible it’s always best to do GVM upgrades pre rego however we can still do them post rego. There is some downsides to doing it this way that need to be considered. If your vehicle is registered, we recommend discussing your situation with our sales team.

Can I install the Jmacx suspension without a GVM upgrade?

Yes, if you don’t require a GVM upgrade we can put together a suspension package using Jmacx components without engineering it with a GVM upgrade.

Does the Jmacx suspension work with a GR Sport?

Yes, both the 3800kg and 4200kg kits can be optioned to suit the GR Sport.

Can I install the Jmacx GVM upgrade myself?

Australian legislation states that GVM upgrades need to be installed by an Approved Registered Automotive Workshop (RAW). Hence these modifications cannot legally be installed by yourself.

Can I option the Jmacx GVM upgrade without a lift?

No, Currently all components and engineering for the Jmacx GVM upgrades only suit 2” or 3” lift heights.

Can I maintain my factory wheels with the Jmacx GVM upgrade?

The Jmacx 3800kg kit allows the factory wheels to be retained however the Jmacx 4200kg kit requires higher load rated wheels as the factory wheels are not rated high enough.

What is the difference between the Jmacx 3800kg and 4200kg GVM upgrades?

The main difference between the Jmacx 3800kg and 4200kg GVM upgrade is a replacement rear diff housing with chromoly axles which is required to achieve the higher rear axle loads required for the 4200kg GVM upgrade. The 4200kg kit also requires load rated wheels, tyres and flares to suit.

Need more information?

Get in touch! We can give you advice or provide a customised quote to suit your vehicle.

JACKSONS 4X4

Call us on 08 8532 2550

Email us via our contact form

61 Chris Collins Court Murray Bridge, South Australia

Monday – Thursday: 8:00am to 5:00pm

Friday: 8:00am to 3:00pm

Closed: Weekends & Public Holidays

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