TSA Stage 3 GVM Upgrade Package – Chevrolet Silverado 1500 (3.85 T GVM | APEX 2.5 MRR | +250 / +400 KG | 2” Lift | SSM Approved)

TSA Chevrolet Silverado 1500 Stage 3 GVM Upgrade – 3.85 T GVM (APEX 2.5 MRR | +250 KG / +400 KG | 2” Lift | SSM Approved)

Take your Silverado 1500’s capability to the next level with the TSA Stage 3 3.85 T GVM Upgrade Package, engineered for superior ride control, strength, and compliance. Developed for pre-registration vehicles, this federally approved upgrade raises your Gross Vehicle Mass (GVM) to 3.85 T, increasing payload to 1,307 KG while retaining LTZ 4.5 T towing or ZR2 4.2 T towing capacities.

Equipped with APEX 2.5 MRR suspension, this package delivers exceptional adjustability and damping performance, whether you’re towing, touring, or tackling rugged off-road terrain.

Inclusions:

• APEX 2.5 MRR Front Coilovers (Left & Right) – adjustable remote-reservoir dampers for precise control, comfort, and fade-free performance

• APEX 2.5 MRR Rear Shocks (Pair) – high-performance remote-reservoir shocks for consistent stability under load

• Upgraded Upper Control Arms – corrects caster and alignment, ensuring optimal geometry and handling under lift

• EFS Rear Leaf Pack (0–200 KG / 400 KG Constant Load +50 MM) – tailored for varying load setups to maintain balance and support

• EFS Bush Kit and U-Bolts – complete hardware kit for durability and compliance

• SSM Federal Engineering Compliance – pre-registration certification included

Lift & Compliance Details:

• Approximate Lift: 2” increase in ride height

• Load-Rated Wheels & Tyres: Not required for this upgrade

• Third-Party Engineering Fee: Applies for post-registration submissions

• Price: $14,150 AUD – includes product, installation, and federal compliance (inc. GST, excl. freight)

The TSA Stage 3 3.85 T GVM Upgrade is the perfect blend of comfort, strength, and performance — delivering a legal, engineered solution that enhances capability without compromising factory drivability or towing power.

Everyday Offroad and TSA provide engineered, federally approved GVM upgrade solutions for Chevrolet Silverado 1500s — built tough, tested, and ready for Australian conditions.