Toyota Prado 250 JMACX 3800kg GVM Upgrade Kit (Post-Registration)
If you have already purchased and registered your Toyota LandCruiser Prado 250 Series, adding touring gear like bullbars, winches, dual battery systems, roof platforms, drawers, and heavy towing equipment will quickly push your vehicle beyond its factory legal payload limits. Overloading a vehicle leads to dangerous suspension sag, diminished braking efficiency, roadside defect notices, and voided vehicle insurance. The Toyota Prado 250 JMACX 3800kg GVM Upgrade Kit (Post-Registration) offers a complete, state-engineered solution to legally increase your Gross Vehicle Mass to 3800kg on an already licensed vehicle. Fitted, weighed, aligned, and certified at Hunter Mechanical in Western Australia, this upgrade ensures your touring rig remains safe, compliant, and ready for any adventure. Why Choose Hunter Mechanical Hunter Mechanical is Western Australia's trusted name in 4WD upgrades and an Authorised JMACX Facility. Operating fully equipped workshops in Perth, Rockingham, and Karratha, our experienced technicians manage the complete post-registration GVM process under one roof. From physical component installation and electrical wiring to weighbridge verification, wheel alignment, and certified engineer modification plating, we make upgrading your registered Prado 250 straightforward, transparent, and hassle-free. Kit Includes - 2x Front JMACX Alpha 2.5 Heavy Duty Struts (Choice of Manual Clicker Dial or Electric In-Cab Adjustment) - 2x Rear JMACX Alpha 2.5 Heavy Duty Shock Absorbers (Choice of Manual Clicker Dial or Electric In-Cab Adjustment) - 2x Front custom cold-wound high-tensile coil springs calibrated to front accessory weight - 2x Rear custom cold-wound high-tensile coil springs calibrated to rear constant load - 1x Set of Blackhawk heavy-duty front upper control arms (UCAs) for alignment restoration - 1x Heavy-duty rear adjustable panhard rod for axle centering - 1x Set of heavy-duty rear lower trailing arms for pinion angle correction - 1x Extended sway bar link kit (front and rear) - 1x High-pressure Airbag Man in-coil airbag assist kit with dual inflation valves - 1x Western Australia Department of Transport Engineering Certificate & Physical Modification Plate - All necessary polyurethane bushes, sleeves, and heavy-duty mounting hardware Key Features - WA State Engineering Approval: Fully engineered and mod-plated for Western Australian road compliance under Department of Transport regulations. - 3800kg Legal Mass Limit: Upgrades your GVM to 3800kg while retaining a 3500kg braked towing capacity, giving you substantial additional legal payload. - High-Performance Alpha 2.5 Shocks: Heavy-duty 2.5-inch alloy shock bodies dissipate heat rapidly, preventing fade during long, corrugated Outback drives. - Comprehensive Geometry Correction: Includes Blackhawk UCAs, heavy-duty trailing arms, and adjustable panhard to maintain ideal CV angles, wheel alignment, and tracking. - In-Coil Airbag Support: High-pressure Airbag Man airbags provide adjustable rear support when loading up heavy camping gear or hitching a caravan. - Custom Spring Rates: Coil spring specifications are chosen based on your vehicle's exact accessories and constant rear payload. Specifications - Upgraded Gross Vehicle Mass (GVM): 3800kg - Factory GVM Rating: ~3100kg-3200kg (variant dependent) - Maximum Braked Towing Capacity (BTC): 3500kg - Suspension Height Gain: 50mm (2 inch) or 75mm (3 inch) options - Front/Rear Shock Diameter: 2.5 inch hard-anodised 6061-T6 aluminium - Shaft Diameter: 22mm hard-chromed induction steel - Compliance Type: WA State Engineering Approval & Physical Mod Plate (Post-Registration) Benefits - Legal Insurance Protection: Keeps your vehicle completely road-legal in Western Australia, guaranteeing your insurance coverage remains valid when fully loaded. - Increased Payload Margin: Easily carry touring gear, fridges, water tanks, recovery equipment, and tow ball weight without exceeding legal mass limits. - Outstanding Handling Control: Eliminates rear-end squirm, body roll, and front-end dipping during heavy braking or emergency lane changes. - Complete Turnkey Service: Handled entirely by Hunter Mechanical specialists in Perth, Rockingham, or Karratha. Suitable Vehicles - Toyota LandCruiser Prado 250 Series (2024-Present) - All registered vehicle variants (GX, GXL, VX, Kakadu, Altitude). Pre-Registration Information (where applicable) For brand-new vehicles that have not yet been licensed with state transport authorities, please refer to our Pre-Registration JMACX GVM Upgrade product options. Post-Registration Information (where applicable) This post-registration GVM upgrade is engineered under state transport authority guidelines (such as WA Department of Transport VSB14 / National Code of Practice). Upon completion of installation and weighbridge testing, an authorized engineering inspection is performed, and an official modification plate (Mod Plate) is permanently affixed to the vehicle. Additional Requirements - Vehicle must be weighed on a certified weighbridge post-installation to establish modified tare weight. - Wheels and tires must meet or exceed the engineering load rating requirements (minimum load index applied). - Mandatory professional installation, wheel alignment, and engineering sign-off at Hunter Mechanical. Frequently Asked Questions Q: How does a Post-Registration GVM upgrade differ from Pre-Registration? A: Post-registration upgrades are performed on vehicles that already have state license plates. Instead of Federal SSM approval, the upgrade is certified via a state engineering inspection and an official WA Department of Transport modification plate. Q: Will this 3800kg GVM upgrade allow me to tow a 3500kg caravan? A: Yes, the JMACX 3800kg GVM upgrade retains the 3500kg braked towing capacity while increasing your allowable vehicle payload. Q: Can I choose between manual and electric Alpha shocks? A: Yes, you can select manual dial adjustable Alpha shocks or electric in-cab adjustable Alpha shocks based on your preferences. Q: Is this modification recognized outside Western Australia? A: Yes, state modification plates issued in Western Australia are legally recognized across all Australian states and territories for interstate travel. Q: How long does the entire post-registration process take? A: The fitting, wheel alignment, weighing, and engineering modification plating are typically completed within 1 to 2 business days. Q: Where are Hunter Mechanical fitment centres located? A: We have fully equipped facilities in Perth, Rockingham, and Karratha, Western Australia. Call to Action Don't risk driving an overloaded 4WD. Contact Hunter Mechanical in Perth, Rockingham, or Karratha today to schedule your Toyota Prado 250 JMACX Post-Registration 3800kg GVM Upgrade!