Custom Work

What We Do

At Relentless Chassis, we specialise in custom fabrication, chassis modifications, and engineered installations. Whether you need more clearance, improved suspension, or a fully certified road-legal setup, we have the knowledge and equipment to deliver professional results.

Our Services

  • Chassis Notch Kits – Weld-in notches designed for strength, clearance, and compliance.

  • 4-Link Rear Suspension Kits – Engineered suspension setups for improved ride and performance.

  • Air Suspension Brackets – Weld-in brackets and mounts for air suspension systems.

  • Custom Welding & Fabrication – Tailored fabrication solutions for a wide range of vehicles.

  • Engineering Certification – All major chassis and suspension work can be supplied with full certification to meet legal requirements.

Supply and Installation

We don’t just supply the parts — we also install our kits if the customer requires. From welding in chassis notches to fitting complete 4-link rear ends, our team can handle the full process. Every modification is carried out to engineering standards, ensuring safety, strength, and compliance.

Proven Workmanship

With years of fabrication and modification experience, we have completed everything from single component upgrades to complete chassis modifications. Our workshop is fully equipped to manage both custom one-off jobs and complete structural upgrades.

Why Choose Us

  • Fabrication and installation you can rely on.

  • All work certified and compliant with engineering standards.

  • Both supply and installation available.

  • Based on the Gold Coast, servicing customers across Australia.