6x6 AUSTRALIA Pty Ltd have been designing and building Bogie-drive (6x6) conversions on Light Commercial Automotive Chassis' for over 30 years. We've been in the game for generations, and have developed our Suspension & Driveline Technologies to keep ahead of the field well into the future. 6x6 AUSTRALIA are the place you can trust to have all your Custom/Bespoke Automotive Conversion works completed.

Coil Spring/Disc Brake 6×6 Nissan Patrol Y61/GU

For carrying heavy Payloads;

For Towing heavy Trailers/Caravans; and

For creating Highly-safe, and Dynamically-stable Performance outcomes in your vehicle’s Steering and Ride Handling, we have the Technology!


Most people Touring/Towing recreationally, or doing the same carrying heavy Commercial Payloads for their work each day, often find themselves forced to carry and tow at or even above their vehicle’s legal GVM/GCM limits.

This is seriously unsafe!


Does your utility vehicle require greater GVM/GCM capacities than its original factory limits? 


Maybe you require more Tray length than your current standard Light-commercial vehicle provides?


You’ve come to the right place for any of these Automotive requirements…

At 6×6 AUSTRALIA Pty Ltd, we offer you effective solutions to the various requirements in Gross Vehicle Mass (GVM) capacities and in tractability upgrades for all potential applications in both on-road and/or off-road uses.

This is seen in our standard Load-sharing, Coil Spring (Optional Extra Prestige Air Bag upgrade), Roll-steering, Bogie-drive Suspension & Driveline systems with Drive-through Diff and Integrated Power-divider built using the legendary Ford 9.5″ (Middleweight models) or 10.5″ Diff Gear sets (Heavyweight models) and Heavy Duty custom Axle Shafts, plus a genuine ‘ARB Air Locker’ Diff Lock as standard across all models.

These Bogie-drive Suspension & Driveline systems, working together, provide some phenomenally advanced traction to your vehicle, as well some extreme wheel articulation, consequently allowing these vehicles to navigate and maneouvre past seemingly otherwise impassable landscapes… To safely get you home to live to tell the tale! 


We are veteran experts in Custom-built Chassis, Differential Assemblies, and other Drive-line and bespoke Bodywork enhancements, all with remarkable style and inherent reliability.


We have been at this for over 30 years (est. 1985), and are the industry leaders in truly capable, safe, and reliable GVM/GCM upgrades for your Towing “Workhorse”.

At 6×6 AUSTRALIA Pty Ltd, we offer 3 main Automotive vehicle modification types for you to consider:

1)- Chassis & Suspension systems;


2)- Drive-line systems;


3)- Bodyworks.

2 of Bob’s sons, Steven Robert acting as Counterweight in the back of the ute, and Brendan Geoffrey on the floor mastering the Block ‘n Tackle.


Our extensive list of highly-advanced and ADR-compliant Suspension & Driveline system upgrades have been designed and prototyped here by ourselves, beginning as a small family operation since 1985.

Each 6×6 model’s extensive testing to accomplish Federally licenced ID Plate Approvals (IPAs with appropriate Federal Dept. in Canberra) are used in certifying our modification works.

 Any vehicles we don’t have our own IPAs for, we simply have our Professional Mechanical Engineer Signatory inspect and certify the modification for your project build.

It’s all a part of the service.


The IP in our designs for our Mil. Spec. Bogie-drive (6×6) Suspension & Driveline Assemblies are now protected as Registered Designs (Registered Design Nos. 201714910, 201714911, & 201714912):

Newly fitted Bogie-drive suspension system showing extreme wheel articulation ability
Recurved Loadshare beam with coil-springs is mounted to Suspension Cradle with ‘A-Arm’ Diff locators in the middle
6×6 AUSTRALIA’s pure 50:50 Loadsharing Coil Spring fully assembled “Rolling Bogie”, ready for final chassis installation
Our Recurved Loadshare Beams, seen here with our Custom-designed, Tapered-wire, Coil Springs are specifically designed to enhance comfort and handling performance inline with its main service role in upgrading the vehicle’s GVM.
6×6 AUSTRALIA’s Heavy Duty Suspension components


Drive-through Diff with Power-divider components for Mazda BT-50 6×6.
6×6 AUSTRALIA’S ‘Integrated Power-divider’ is the control centre for the massive amounts of bulk traction in the 4 rear wheels under drive power from the Transmission.   Extensive force is now driving down into the track over that short area/space between the 4 rear wheels of the new Bogie-drive Suspension system.   As this bulk traction “bites into” the road/track, the road/track tries to force it back into the tyres. The balance between the two forces in the end results in propelling the vehicle in whatever direction is intended (forward or backward).     Our Power-divider keeps the 4 axle shafts (1 for each wheel in the Bogie-drive Assembly) from killing each other, and it keeps the wheels driving the vehicle along with optimal stability and stylish control (instead of having to rely on momentum &/or brute force to navigate through obstacles and challenges).


6×6 AUSTRALIA’S ‘Drive-through Diff’ with integrated Power-divider’  fitted internally (6×6 Mazda BT-50 model pictured).
This integrated Power-Divider is Officially Licenced Technology, and is one simple and ingenious piece of Automotive Mechanical  Engineering that fits right inside our Drive-through Diff Assembly’s Gear Centre.

Bob James (our Founder and Chief Executive) recently began finalising successful trials of our Power-divider with ZAMBONI Corp. U.S.A. and their world-renowned Ice-resurfacing machine brand, known workdwide as “The Zamboni”.

It works to help solve challenges in balancing their traction requirements for working on Ice with traction and maneouverability, and adapting to when off-ice, e.g. concrete or bitumen, in order to avoid suffering drive-line damage/failure.

Applications in High-speed off-road 4×4 racing machines are also set for the coming year, later in 2019.



Australian Design Rules (ADRs) and legal compliance of vehicle modifications:

Australian Design Rules (ADRs) are the rules legally binding Vehicle Manufacturers and custom Automotive Engineers in vehicle design and manufacture, in order to design safe and reliable vehicles for all the Australian roads nationally.

All of 6×6 AUSTRALIA’s conversions have full ADR Compliance, and most with our own Federal ID Plate Approvals (IPAs) under our Federally-licenced 2nd-stage Design & Manufacturer status. 

Our IPA numbers certify our 6×6 Suspension and Drive-line modifications Nationwide.

This means you can register it in any State or Territory, and when you go to sell it, its IPA adds resale value, especially for potential interstate buyers who won’t need to acquire a new Engineer’s Report in their State or Territory (which they do have to do with individual Engineer Reports).

Federal IPAs are a long-winded and expensive process of Engineer Testing and Certification paperwork through the Federal Dep’t of Infrastructure, Regional Development, and Cities in Canberra.

They took us years to achieve, and once we put our IPA plate on your converted vehicle, it stays there for the life of the conversion.

 This following list reveals all the 6x6s we have IPAs for:

1) – Toyota Landcruiser 70 series 6×6 (all current model LC70s, e.g. VDJ79R, etc) for Middleweight GVM upgrade [Car Licence level] to 4,495kgGVM with IPA #43189;

and for Heavyweight GVM [Heavy Vehicle Licence upgrade] to 6,080kgGVM with IPA #46527;


6×6 Toyota Landcruiser 79 with custom Flatbed tray body.

2) – Toyota Landcruiser 200 series 6×6 (current model LC200) for Middleweight GVM to 4,495kgGVM [Car Licence upgrade]; and Heavyweight GVM to 6,080kg GVM [Heavy Vehicle Licence upgrade] with IPA #48397;

3) – Nissan Patrol Y61/GU 6×6 for Middleweight GVM to 4,495kgGVM [Car Licence upgrade] with IPA #47606;

and for Heavyweight GVM to 5,500kgGVM [Heavy Vehicle Licence upgrade] with IPA #47607;

Nissan GU Patrol 6×6 with Flatbed tray body

4) – Mazda BT-50 6×6 (current model) for Middleweight GVM upgrade to 4,495kgGVM [Car Licence upgrade] with IPA #47852; and

6×6 Madza BT-50 with Flatbed awaiting fitout of RV/Camper body

 5) – Ford Ranger 6×6 (current model) for Middleweight GVM to 4,495kgGVM upgrade [Car Licence] with IPA #48853.

New 6×6 models currently having our Suspension and Drive-lines adapted for their individual case’s ADR-compliance and IPAs in 2019 include:

Iveco Daily 5500 6×6 and 6×4 (current model) in Middleweight 4,495kg GVM [Car Licence operators], and Heavyweight configuration 8,000kgGVM [Heavy Vehicle Licence operators];

Mercedes-Benz Sprinter 6×6 and 6×4 (current model) in Middleweight 4,495kgGVM, and Heavyweight 8,000kgGVM;

– Mercedes-Benz G- Wagen 6×6 (current model) in Heavyweight configuration 7,000kg GVM;

Toyota Hilux 6×6 (current model SR5) in Middleweight 4,495kgGVM upgrade [Car Licence operators];

Nissan Navara NP300 6×6 (current model) in Middleweight 4,495kg GVM upgrade [Car Licence operators];

Ford F150 6×6 (current model) for Middleweight GVM upgrade to 4,495kg [Car Licence operators] and/or Heavyweight GVM upgrades to 7,000kg GVM [Heavy Vehicle Licence operators]; and

Ford F350 6×6 (current model) for Heavyweight 8,500kgGVM upgrade [Heavy Vehicle Licence operators].


IPAs decrease the paperwork burden and the tyranny of Insurance & Registration costs for your truly superior new vehicle.

Some expensive hidden costs our unique Bogie-drive systems are designed to overcome, and which other providers of 6×6 cannot boat, all include: 

i)- Excessive tyre-wear. This excessive “Tyre Scrubbing” as we have defined it, of the Bogie Rear-end’s four tyres is due to the fact other Bogie-drive systems don’t allow the axles to communicate with each other properly. This is because there is no effective ‘Applied Loadshare’ between their four wheels.

‘Loadshare’ is important, and for more than just redcuing costs from “Tyre-scrubbing”. It is primarily about vehicle safety to us.


6×6 Australia’s Coil Spring Suspension (International Registered Design No.s 201714910, 201714911, and 201714912) incorporates a mechanically integrated ‘Roll-Steer’ function, allowing the tyres to maneouvre under physical force from the Payload (carried above them) as the vehicle corners. Physical forces known as ‘Inertia’, ‘Gravity’, and ‘Centrifugal’ all combined).

Also, in combination with our ‘Integrated Power-divider’, the Coil Spring Suspension works to reduce tyre wear. This functional Roll-steering feature is very subtle and difficult to describe without a proper demonstration, which helps explain these concepts further.

It works similar to how a Skateboard steers, with the outer two wheels moving away from each other, and the inner two wheels contracting toward each other around a bend.

The raw image below attempts to explain it better.

Please, if you’re seriously considering we have the solution you require, contact us to organise a personal demonstration and/or a consultation appointment to discuss your requirements further.