Aussie heavy duty big bore shock absorbers

Formula 4x4 Big Bore Shocks

Get a premium heavy duty shock absorber for your 4WD, call 1800 385 278!

Formula 4X4 by Fulcrum Suspensions has been steadily growing not only in range but also popularity. Formula 4X4 Big Bore shock absorbers are the latest release from the Fulcrum Suspensions engineering team that are a premium yet affordable product. 

Formula 4x4 Big Bore Shock Absorber Installed Nissan Patrol


The Formula 4X4 Big Bore shock absorber range has many incredible features and have been specifically designed to handle extreme heats and carrying loads. We built a shock absorber that provides the highest quality off road and on road adventure. Designed and tested by Graham Scudamore-Smith and our own in-house Research and Development team, this shock absorber is made to withstand Australian driving conditions. Our product development team has been working on Formula 4X4 Big Bore shock range for years, taking great care in the QA process to ensure you have access to the best product possible. We guarantee the Formula 4X4 Big Bore shock absorber range will deliver comfort and performance off road, and stability and durability on road. Call us on 1800 385 278  or check out our online shop to get a great deal!


Formula 4x4 Big Bore Customer Review Nissan Patrol Touring Australia


The Formula 4X4 Big Bore shock absorber range has been designed for heavy-duty off-road applications, providing you with ideal off-road performance, reliability and comfort. Designed and built to handle extreme heats, and front and rear loads, the Formula 4x4 Big Bore shock range is best suited for heavier 4WDs, such as the Nissan Patrol and the Toyota Landcruiser. 



Heavy Duty Off Road Shock Absorbers


Tested & Used by 4WD Action

Shaun Wale, presenter of 4WD Action, reached out to us after seeing how well the Formula 4X4 Lift Kit performed in Graham Cahill's D-Max during their off-road adventures. Shaun was after a set of heavy-duty shock absorbers for his new awesome Landcruiser build, looking to make it one of the most unique builds in the world. Luckily, we had the perfect suspension solution in the form of our Formula 4x4 Big Bore shocks. These shock absorbers with the increased strut size, oil capacity, piston size and many other unique engineering specifications (proprietary to Fulcrum Suspensions), allowed us to give him the best suspension solution to match his vehicles application. 


Formula 4x4 Big Bore Engineering

Formula 4x4 Big bore has been engineered by a team of suspension experts. With both on and off-road testing rigorously performed, the engineering team have tirelessly worked to bring to the market another great Formula product. Filling the large gap in the range we previously had for Nissan Patrol’s GQ and GU models and Toyota Landcruiser’s 76, 78, 79, 80, 100, 105 and 200 series models. 


Fulcrum Suspensions Big Bore Shock Absorber


Specifications of Formula 4x4 Big Bore

  • 40mm OD sintered metal piston
  • Teflon coated piston for smoother internal operation
  • Massive 58mm (Struts) to 66mm (Shocks) Outer tube for higher volume oil capacity allowing for greater heat dissipation
  • Specifically, designed piston type, progressive, linear & digressive to suit each application
  • Highly polished, heat treated, high strength steel piston rod
  • 1.5mm shock wall thickness (inner tube) for extra strength
  • High temperature Fuchs oil with high temperature seals
  • Proprietary Formula anti-foaming technology to resist fade
  • Engineered to suit each application
  • Designed for Durability, Performance & Australian conditions
  • Pre-installed SuperPro bushings
  • 3 Year or 60,000km Warranty


The continuing success of the Formula 4X4 range has been enhanced by our new Big Bore release, expanding the current range of vehicles Formula 4X4 can be fitted to. It has also been enhanced by providing a reliable and affordable aftermarket option for two of the most popular 4x4’s on the market, the Nissan Patrol and the Toyota Landcruiser. 



Lifetime Bushings

By partnering with SuperPro Suspension, we were able to combine their aftermarket bushes with our shocks to further increase the performance, durability and comfort of your driving experience. Giving longer durability and increased flex to your suspension, ensuring that no matter the terrain, Formula has got you covered. 

Formula Suspension Warranty

All Formula Suspension Parts are covered by a 3 Year 60000km Warranty. This means that if a Formula Product fails, it will be replaced free of charge.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The benefits given by the warranties set out below are in addition to other rights and remedies under Australian law in relation to the goods or services to which the warranties relate.

This warranty is limited to the replacement of the originally supplied Formula component. This warranty does not include off-road and motorsport applications. This Warranty does not cover the labour costs of removal/replacement nor any consequential damage, where this limitation is permitted by local law.


Affordable Suspension

We believe that everyone should have access to aftermarket suspension, especially in today’s age when everything is so readily accessible. When designing our new shocks and suspension products, we kept this in mind. Making sure to engineer the best shock absorbers at an affordable price, while at the same time not losing any quality. 


Comfortable Ride

With off road driving on the rise and performance enthusiasts becoming more common, we wanted to make shock absorbers that would give each segment a great experience. That is why we have created two completely different ranges, in the hopes of giving everyone the best possible suspension system, no matter what your driving preferences are! 


3 Yr/60000km Warranty

We trust that our shock absorbers will deliver so much that have given every shock, readystrut and other suspension system that we make a 3 year warranty. Covering you for 60,00km, if something happens while you’re off road no sweat we will replace it. If someone happens while racing on the road, no worries we will replace it.

Single Formula 4x4 Big Bore Shock Absorber for Nissan Patrol


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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