Formula 4x4 Suspension

Formula 4x4 Leaf Springs

Formula 4x4 leaf springs are designed and tested for Aussie conditions, call 1800 385 278

Made by Australians for Australians! Engineered to tackle Australia’s harsh conditions, Formula leaf springs are perfect for trade vehicles, commercial vehicles and enthusiast 4WD’s.

Formula leaf springs are suited to carry a range of front and rear loads, from 50kg – 800kg loads and 20mm – 80mm heights. Providing both comfort and heavy-duty leaf spring options incorporating a range of special features, ensuring you get the right ride for your 4WD.



Special Leaf Spring Features Including; 

  • Oil quenched, hardened & tempered for maximum life.
  • Accurately heat treated for improved toughness for off road conditions
  • Inter-Leaf Graphite Coating - For further reduction of friction.
  • Manufactured from high grade Australian spring steel

We sell both Single Leaf Springs & Leaf Spring Kits

  1. Hilux & Tunland Single Formula Leaf Spring - 40mm Lift at 300-400kg
    was $201.30 Now: Special Price $171.11
    Hilux & Tunland Single Formula Leaf Spring - 40mm Lift at 300-400kg
  2. Triton Formula Leaf Spring - 40mm Lift at 250kg
    was $328.90 Now: Special Price $279.57
    Triton Formula Leaf Spring - 40mm Lift at 250kg
  3. Toyota Hilux 2005 - 2015 Formula Leaf Spring Kit - 40mm Lift at 400kg Dual Cab & 500kg Single Cab
    was $609.00 Now: Special Price $517.65
    Toyota Hilux 2005 - 2015 Formula Leaf Spring Kit - 40mm Lift at 400kg Dual Cab & 500kg Single Cab
  4. Nissan Navara D21 & D22 Formula Rear Leaf Spring Kit - 45mm lift at 150kg
    was $562.00 Now: Special Price $477.70
    Nissan Navara D21 & D22 Formula Rear Leaf Spring Kit - 45mm lift at 150kg


Formula 4x4 Leaf Springs in Action on Fraser Island


All Formula 4x4 leaf springs have been tested by Fulcrum Suspensions at their QA facility, workshops, on off road tracks, on cross country adventures and most importantly all Fulcrum’s 4x4 customers. Formula 4x4 leaf springs will help you tackle any Aussie task and adventure.

Made from Australian high-grade carbon spring steel (SUP9 & SUP9A) our leaf springs are built to perform. Formula leaf springs have been designed to tackle a range of specific applications. With inbuilt specific features to help them preform on and off road in any harsh condition. 

  • Precision mandrel & die-formed
  • Anti-friction pads in most applications
  • Pre-stressed to maintain ride height
  • Tapered Leaf Ends
  • Bolt Clip Liners - To reduce noise & friction.
  • Bolt Clips & Military Wraps - To prevent leaf spread & provide safety
  • Military leaf spring wrap for additional safety
  • Precision diamond cut ends
Formula 4x4 Leaf Spring Installation
'Formula 4x4 Leaf Spring kit being installed at Fulcrum Suspensions Springwood.'

Fulcrum suspensions highly recommends Formula leaf springs as we know the high degree of engineering, testing and manufacturing that goes into the leaf springs.Formula leaf springs are distributed nationally through our dealer network and are also sold globally through our export department as part of our complete kits.

We trust Formula 4x4 leaf springs so much that we use them as our main leaf spring for all repair and upgrade service jobs in store. We also supply all our lift kits (Bilstein, Formula & RAW) with Formula 4x4 Leaf springs.


Why you should use Formula 4x4 Leaf Springs

Better Ride Plus Carrying Ability

Rriginal manufacturers generally run soft first stage springs and stiffer second stage, this results in a ‘kick‘ or jolt to the driver when driving with no or little load. Formula work with a firmer or higher rate single stage spring or firmer higher rate 1st stage to give ride and carry weight making a vehicle safer along with comfort.

Better Shackle Angle

The most critical function of a leaf spring to achieve ride is shackle angle, When raising a vehicle the spring camber changes along with the main leaf angle. To achieve a superior spring Formula incorporate lengthened spring main leaves where possible to achieve ideal shackle angle in a lifted vehicle.

Better Design

Formula pay attention to accuracy of spring eyes to inshore the SuperPro bushings fit correctly and locate the spring for smooth rotation. Redesigned wrap leaf shapes are used for great security, example a military wrap.

Reduction of Stiction

To deliver the reduction of stiction in a leaf spring Formula has incorparated features such as, shot peening of the main leaf, graphite grease, anti-friction leaf slipper pads, diamond cut ends, tapered ends. These features are incorporated depending on the vehicle application and its use.

Noise Reduction

Alignment of spring leaves, is critical for noise and alignment of plates in a leaf spring and Formula adds addition clips and clamps.

3 Year or 100,000km Warranty

We offer a three year product warrantty on all our shock absorbers, no exceptions. Ensuring you are covered when you come into a problem. We want you to be able to drive in comfort without any worries.


Formula 4x4 Leaf Spring Technical Details


Formula 4x4 In Action with 4WD Action

4WD Action, a popular outdoor adventure show was so interested in our Formula Lift Kits, including our leaf springs that they wanted to install a kit into Graham Cahill's  Isuzu D-max. The 4WD Action team drive on some of the hardest 4x4 tracks in Australia and have quite literally taken our Formula suspension setup around the whole of Australia. We have had raving reviews from Graham and rest of the 4WD Action!


Formula 4x4 Leaf Spring Warranty

All Formula 4x4 leaf springs come with a 3 year / 100,000 Km Warranty


Search our Suspension Range

If you would like to get a quote or advice from a suspension specialist, then please give us a call or send us a message. You can also shop our complete range of products through our online shop. We offer Free delivery to all metro locations and have both company stores and dealers spread across Australia, who install our products and specialise in suspension. 

Fulcrum Suspensions Specialises in Suspension

With over 40 years of industry experience, we can get you pointed in the right direction.

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