5.8T GVM 3289KG Rear Axle Upgrade for Post-Rego 20+ Chevrolet Silverado 2500HD

Everyday Offroad 2020+ Chevrolet Silverado 2500HD Post-Rego GVM 5.8T / 3289KG Rear Axle Upgrade

Upgrade your Silverado’s capability and compliance with Everyday Offroad’s 5.8T GVM Upgrade for 2020+ Chevrolet Silverado 2500HD models.

This upgrade increases the Gross Vehicle Mass (GVM) from 5148KG to 5828KG, and raises the rear axle capacity from 2994KG to 3289KG, providing greater payload capacity and safer towing performance—perfect for heavy-duty touring, work, or towing applications.

To achieve the certified Post-Rego 5828KG GVM rating, the vehicle must be equipped with:

• Approved suspension and lift system

• Load-rated rims and tyres

• Mudflaps on guards/flares (if applicable)

• Leaf extra reset to achieve compliance with 3289KG rear axle rating

Each kit and setup is engineered in line with VSI guidelines and complies with state-specific engineering requirements for post-registration GVM upgrades.

Everyday Offroad specialises in American truck upgrades and GVM solutions that meet Australian road standards—tested, proven, and engineered for real-world conditions.