Gross Vehicle Mass (GVM)

GVM is the maximum a vehicle can weigh when fully loaded. This includes the vehicle, all of its luggage, fuel, accessories and passengers. It is specified by the vehicle manufacturer on a plate affixed to the vehicle.

Gross Combination Mass (GCM)

GCM is the greatest possible sum of the maximum loaded mass of a motor vehicle, and any vehicles that may be lawfully towed by it at one time. The GCM on a passenger vehicle is not stamped on any compliance plates - it is specified in the owners manual or upon request from the manufacturer to disclose.

Braked Towing Capacity (BTC)

BTC is determined by the vehicle manufacturer and is based on factors such as the design of the vehicle, the vehicle's rear axle load, the capacity of its tyres and the effect the fully loaded trailer will have on the vehicle's stability, durability and general safety.

Tow Ball Weight (TBW)

TBW is the downward force from the a-frame of the caravan/trailer which when connected is applied to the vehicles tow bar.

Aggregate Trailer Mass (ATM)

ATM is the combined weight of the trailer and its full load when it is not coupled to a tow vehicle.

How do I calculate GVM?

GVM for any vehicle is calculated as the total weight of the vehicle while allowing for all fluids of the vehicle with 80kg per passenger. This means that if your new Hilux comes it at 2800kg with a full tank of fuel and no passengers, your a legally over your GVM by 200kg!

How do you build the right set up for my vehicle?

Suspension set up is relative to weight. Don't settle for a one size fits all approach for your vehicle's needs. You CAN get an excellent riding vehicle at an affordable price. Click here to know more about our Ultimate Process. Call us now for a free quote.

Am I over GVM?

Stop the guess work and get your vehicle weighed!

I need my vehicle inspected and engineered, what is the process?

Give us a call to book in your appointment for an initial chat.

I have a custom application, can you build something for me?

Sure. Give us a call and if we can't help then we'll refer you onto somebody who can!

Do you fit accessories?

Yep. Our team are not only certified mechanics but can also set up your Bullbars, Snorkel, RoofRacks and can build your 12V dream. Our approach is meticulous and we pride ourselves in our attention to detail. We can fabricate anything you can dream of and can make it happen. Our fierce independance and our experience of 45 years in the industry means we can source any brand that you have your heart set on.

What do you do other than suspension?

The Ultimate Suspension is your suspension and driveline experts.

I live in another state, can I still get your products?

Yep. Give us a call and we can deliver our great products anywhere around the country - and FAST!

I live overseas, can I still get your products?

Yep. We're sending goods overseas almost every week. So if you have a destination, we can get it there - and FAST!


  • Since 1975 means more people trust us with their investment
  • The Ultimate Suspension exports across the globe and is a trusted name in the armoured vehicle industry
  • Independent operator with no product line lock in - we chose and manufacture only the best
  • 24 Month / UNLIMITED km Nationwide Warranty on Ultimate Shock Absorbers.
  • LIFETIME Warranty on all Springs.
  • ASE Certified Technicians
  • Driveline and Suspension Specialists
  • Full support and excellent after sales service

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Key Advantages

Design the Ultimate Suspension for your 4WD

With over 45 years of experience The Ultimate Suspension exports across the globe and is arguably the most trusted name in suspension and vehicle dynamics upgrades.

Tow with Ultimate Safety & Confidence

Experience the best in vehicle dynamics and safety while towing with a GVM and DBA brake upgrade package designed specifically to suit your exact requirements. Our service costs no more and is immeasurably better than our competition.

Ultimate GVM & Tow Capacity Upgrades

As a Lovells, Pedders, and JMACX/AEV Authorised Facility experience the best in vehicle dynamics and safety while towing with federally certified pre or post registration GVM or BTC upgrade solution.

Military & Export Suspension Systems

The Ultimate Suspension is the trusted name in the armoured vehicle industry, supplying the Australian Defence Force, local government agencies, international armoured vehicle manufacturers and UN peacekeeping forces.

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What Our Clients Say

Jack F.
(2006 Nissan Pathfinder)
Fantastic, I'm totally blown away by Testimonial Generator. more
Rick E
(2006 Nissan Pathfinder)
Ultimate Suspension saved my business. This is simply unbelievable! Man, this thing is getting better and better as I learn more about it. more
Vivie X
(2006 Nissan Pathfinder)
Ultimate Suspension was worth a fortune to my company. I made back the purchase price in just 48 hours! Thanks Ultimate Suspension! more
Nona D
(2006 Nissan Pathfinder)
Definitely worth the investment. more
Michael & Joanne McCulkin
(Mitsubishi Canter All Terrain Warrior 4WD Coach)

Tri State Safaris operates 4WD tours Australia wide in our Mitsubishi Canter All Terrain Warrior 4WD coach. The vehicle is only 12 months old but has always been in need of a better ride. We ... more

Michael Hall
(2006 Nissan Pathfinder)
Being dissatisfied with the very rigid ride from the original suspension on my 2006 Nissan Pathfinder, and following discussions with yourselves, I decided to have the suspension changed to The Ultimate Suspension Gas Shock Absorber System. ... more
Charlie C

These guys are absolutely fantastic to go to. I am really glad that I found them. Ken and his team spent two hours with me when I first turned up for a quote, making ... more

Ali Raza H

I am from Pakistan. I have had four suspensions from ULTIMATE and love the ride on all four hiluxs.

Michael G

five stars, best improvement for my Triton. Got the lift and suspension upgrade 5 years ago and a rebuild this year. Car drives much better now.

Russell G

I am so happy with my Ultimate Suspension, I wouldn't buy anything else in the future. Quality products, great service, not one issue with my lift kit which has now done 150000 Kms, car still ... more

Rod C
(VW Amarok)

I had extensive suspension and other 4WD accessories supplied and fitted to an Amarok to accommodate a Trayon camper and outback travel. The advice provided was top class, the products supplied were excellent and ... more

Verity S
(Pajero Sport GVM)

Friendly, experienced and knowledgable staff. Did exactly what was needed, no hidden extras. Very happy and loved the enthusiasm of the staff who clearly take pride in the service they offer.


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