Gross Vehicle Mass (GVM) upgrades are a vital solution for vehicles that regularly carry heavy loads, tow large trailers, or operate in demanding conditions. These upgrades increase the legal weight your vehicle can carry, helping to keep you compliant, safe, and in control—especially when fully loaded for work, touring or towing.

At Ultimate 4WD, we partner with Lovells Automotive Systems, Australia’s leading manufacturer of heavy-duty suspension systems and vehicle compliance solutions. Lovells are an Australian-owned and operated engineering company with a long-standing reputation for quality, innovation, and performance. Their GVM upgrade kits are fully ADR-compliant and offer federal and state certification pathways, depending on whether your vehicle is new or already registered.

Lovells GVM upgrades are engineered to meet the demands of constant load carrying while maintaining vehicle handling and safety. Each kit is purpose-built and rigorously tested, ensuring complete compliance and peace of mind—whether you’re setting up a trade vehicle or building the ultimate touring rig.

1 1

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

View full details

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.