Lovells GVM, GCM & BTC Upgrades – Perth & WA
Ultimate 4WD are Perth’s approved Lovells GVM certifiers, supplying, installing, and certifying suspension and compliance upgrades. Now offering post-registration GCM upgrades for the Toyota LandCruiser 300 in WA, plus federal-level GVM, GCM, and BTC solutions for select models.

Lovells Suspension & Compliance Upgrades in Perth & Western Australia

At Ultimate 4WD in Perth, we work with Lovells Automotive Systems, Australia’s leader in heavy duty suspension and compliance solutions. Lovells is an Australian owned and operated engineering company known for quality, innovation, and performance.

As an approved Lovells GVM certifier, we handle the entire upgrade process; supply, installation, inspection, and certification to ensure your vehicle is legal, safe, and ready for the demands of work, touring, or towing anywhere in WA.

GVM Upgrades – Gross Vehicle Mass

A GVM upgrade increases the legal carrying capacity of your vehicle, essential for heavy load carrying or demanding driving conditions. Lovells GVM kits are fully ADR compliant, engineered for constant load performance, and rigorously tested for safety and handling.

Whether you’re setting up a trade vehicle or building the ultimate touring rig, our Perth workshop provides complete end to end service to get you compliant and road ready.

GCM Upgrades – Gross Combination Mass

At a federal level, GCM increases are included with Lovells GVM upgrades installed before first registration, giving new vehicles higher legal towing and combined weight limits immediately.

In Western Australia, post registration GCM upgrades are now approved and available for the Toyota LandCruiser 300. We’ve already begun completing these for WA customers, offering:

  • Add-on GCM for LC300s with an existing Lovells GVM upgrade
  • Combined GVM & GCM packages for unmodified LC300s

More vehicle makes and models are progressing through the WA approval process.

BTC Upgrades – Braked Towing Capacity

BTC upgrades increase your legal braked towing limit and are only available at the federal (pre-registration) level. Lovells BTC upgrades are currently available for the LandCruiser 300 and Ford Ranger, delivering greater towing capability while staying fully compliant with Australian Design Rules.

Why WA Chooses Ultimate 4WD for Lovells Upgrades

  • WA’s Lovells GVM, GCM & BTC specialists
  • Fully approved Lovells GVM certifier in Perth
  • 20+ years’ experience in 4WD modifications and compliance
  • Complete service: supply, installation, inspection, and certification
  • Servicing customers across Perth and regional WA

Whether you need more payload, higher towing capacity, or both; Ultimate 4WD delivers Lovells certified upgrades built for WA conditions.

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Lovells GCM Upgrade - Landcruiser 300 Post Registration (WA Only)

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Build Your Ultimate 4WD

We specialise in full vehicle builds for a select range of models. We've broken these down into modules to make it easy for you to explore the options. Please navigate each module and add your preferences to your online build and submit this to our team. We will be in touch to run through your build with you, provide advice and ensure your vehicle will suit your trip plans. 

Our R&D vehicles have most options fitted and we have a variety of showroom displays available showing alternative options and hard to see items like the suspension, electrical system and roof rack. We encourage you to come by and see and touch our unique solutions, the quality of the components we use and our workmanship and to speak with our experienced team.

Select your vehicle below or click here to view our full range.