TSA Toyota Tundra GVM Upgrade – 3.99 T GVM (2” Lift | FOX / MRP | Airbag Kit | SSM Approved)

TSA Toyota Tundra GVM Upgrade – 3.99 T GVM (2” Lift | FOX / MRP | Airbag Kit | SSM Approved)

Increase your Toyota Tundra’s payload, stability, and compliance with the TSA 3.99 T GVM Upgrade Package, developed and federally approved for pre-registration vehicles.
This package raises your Gross Vehicle Mass (GVM) to 3.99 T, increasing payload capacity to 1249 KG and rear axle rating to 2149 KG — perfect for towing, touring, and heavy accessory setups.

Engineered for both strength and comfort, the system uses premium 2.5” remote-reservoir suspension and an airbag load assist kit to maintain control, balance, and ride quality under all conditions.

Inclusions:

• 2.5” Front Coilovers with Remote Reservoirs – adjustable dampers for comfort, control, and fade-free performance

• 2.5” Rear Shock Absorbers with Remote Reservoirs – consistent damping and improved stability under load

• Heavy-Duty Front Upper Control Arms – corrected geometry and improved articulation for lifted setups

• Rear Coil Springs (+50 MM Lift) – available in 100 KG or 300 KG constant-load options

• Airbag Suspension Kit – rear load support for towing and variable payloads

• SSM Federal Engineering Compliance – pre-registration certification included

Requirements & Details:

• Lift: 2” (50 MM front and rear)

• GVM: Upgraded to 3.99 T

• Payload: Up to 1249 KG

• Rear Axle Rating: 2149 KG

• Load-Rated Wheels & Tyres: Approved with factory wheels and tyres

• Shock Option: Supplied with MRP dampers if APEX units are unavailable

• Price: $12,800 AUD – includes product, installation, and federal compliance (inc. GST, excl. freight)

• Compliance: Pre-registration only (post-registration option coming soon)

The TSA 3.99 T GVM Upgrade transforms the Toyota Tundra into a capable, compliant heavy-duty performer. Whether towing, touring, or carrying gear, it offers factory-level comfort with the confidence of full engineering approval.

Everyday Offroad and TSA deliver federally approved GVM upgrades for American trucks, engineered and certified for Australia’s toughest touring environments.