Extras - Custom Fabrication and Spring Design

For over thirty-five years The Ultimate Suspension has set the standards by which all aftermarket 4WD suspensions are judged.

Features detailed here are only a selection of the many incorporated in the innovative design which makes all Ultimate Suspension systems true to our name.

You can expect more from an Ultimate spring

The Ultimate Leaf Spring is a fully staged progressively laminated leaf spring. This means that the length of each spring is proportioned to the length of the proceeding leaf, improving the characteristic of the spring. SUP 9A grade spring steel is used exclusively, greatly increasing elasticity and memory as well as giving longer life and greater safety.

Each Ultimate leaf is treated in computer-controlled furnaces giving precise heat control. This precision is required because high-grade steel is less tolerant to variation in temperature (during manufacturing) than commonly used lower grade steels. The fully assembled springs are then subjected to a final test to ensure all leaves are seated and working as an effective unit. The test involves more than 800 deflections under extreme pressures.

Springs ain’t springs!

Ultimate leaf springs are designed in a range for each vehicle. This provides a choice of spring to suit different vehicle loading and driver requirements. Springs are cambered to accommodate different loadings on the driver and passenger sides of the vehicle. Final quality control inspectors mark spring indicating whether the camber is at the upper or lower level of its tolerance. This allows matched sets of springs and can be fine-tuned for additional unequal vehicle loading. Spring rates are then matched with appropriate shock absorbers from the “Ultimate” range according to the specific vehicle application.

The System materials, design, and manufacturing techniques which are “The Ultimate” leaf spring provide you the assurance of outstanding performance and safety backed by The Ultimate Suspension's unique Life Time Warranty* (Conditions Apply).

  • Spring eyes fitted with steel sleeves where applicable, which reduces wear on bushes
  • Specially designed Spring Eye Gap Return reduces stress during main spring deflection
  • Leaves are diamond cut on friction edge allowing distribution of heat and friction over a greater area, increasing life and efficiency
  • Heaves individually shot-peened (stress relieved) then scragged (deflection tested) and pre-set
  • All leaves individually cambered according to their application
  • Available in both lineal and leav variable staging
  • Available in a range of spring rates to suit individual applications
  • Lifetime Warranty (Conditions Apply)

Ultimate coils

Safety, comfort, and performance through design - combining 35 years of experience in suspension integration with the highest grade quality materials, the latest in technological design, and international standard manufacturing processes.

The ultimate choice of a fully integrated suspension system provides a selection of coils with individually matched and tuned shock absorbers to suit each specific application.

As suspension requirements are split into three categories, standard height heavy duty, raised height comfort and raised height heavy duty. It is impractical to expect one spring or shock absorber design to provide optimum results.

The Ultimate Suspension system provides you with the individual choice to suit your specific requirements.

Designed and manufactured in Australia to suit Australian conditions as well as earning valuable export dollars on the international markets.

  • Shot Peened for reduced stress
  • Scragged and Pre-set for precision load handling
  • Available for most vehicle applications, custom-designed and built coil also available
  • Typically available in Standard Height Heavy Duty, Raised Height Comfort and Raised Height Heavy Duty settings, yet specific spring rates can be produced at extra costs
  • Lifetime Warranty (Conditions Apply)

We're here to help! Get in touch now and we can help you make the right decision for your personal vehicle or fleet.

Aussie Ryder Price Catalogues

Our latest catalogues, descriptor sheets, 1000km check forms and warranty claim form.


Aussie Ryder Shock Absorbers

New generation Aussie Ryder gas pressure twin-tube shock absorbers.


Torsion Bars

Constant Performance.


Ultimate Leaf Springs

Ultimate leaf springs are designed in a range for each vehicle. This provides a choice of spring to suit different vehicle loading and driver requirements.


Specialised Lubricants

Premium lubricants - Australian made. Always.


Brake Upgrade Packages

Brake upgrades are arguably the best bang for buck investment you can make to your vehicle. Outstanding results you'll appreciate every day.


Lovells GVM Upgrades

A relationship that spans over 40 years. Ultimate shocks and Lovells springs go hand in hand.


NET4x4 GVM Upgrades and Parts

Premium quality VW Amarok parts and accessories.


GVM Upgrades

We supply and fit the full range of State and Federal approved GVM upgrades to suit every vehicle and application. We'll assess your precise needs and recommend the most appropriate solution available.


Transmission and Intercooler Upgrades

Your transmission will last longer allowing your workhorse more time on the road with fewer issues, performance guaranteed.


Custom Fabrication and Spring Design

Safety, comfort and performance through design.


Engineering and Testing

Vehicle certification and engineering.


Why Choose Us?

  • 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

Call to speak to one of helpful staff.

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.

Join over 5000 other customers

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.


Not convinced?

Get in touch and experience The Ultimate difference.

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