Landcruiser 300 Series GVM Upgrade 4200 Kg Manual Adjustable Shocks

GVM Upgrade Specifications

Hunter 4x4's 4200kg Jmacx GVM with manual shock adjustment upgrade includes:

• Jmacx Alpha 2.5 kit  manual(2 inch/3inch)
• Jmacx rear lower control arms
• Jmacx rear swaybar links
• Jmacx rear coil spring
• Jmacx rear panhard
• Black hawk Upper Control Arms
• Jmacx Reverse Light
• Cat 6 indicator kit
• Jmacx rear diff housing assembly 
• Complete wheel alignment

 This kit is certified for:

• 2 inch lift up to 33 inch tyres, pre and post rego all states
• 3 inch lift up to 35 inch tyres (TBA)  pre and post rego all states (50mm tyre increase some states post rego)
• Increase your GVM to 4200Kg
• Maintain BTC of 4200kg at full 4200 GVM (Post rego is state dependent for this)
• Axle Load Increase to 1800Kg Front and 2800Kg Rear

You will also need to fit (not included):

• Load rated wheels and tyres

All JMACX products have full engineering and are approved by all states in Australia for post rego vehicles to ensure you are safe and legal on Australian roads. 

Frequently Asked Questions:

“Why does the 300 series need a flare kit?”

The standard factory flare on the 300 series only provides 10mm of coverage beyond the full width of the tyre. Legally the flare and mudflap must cover the external width of the tyre.  Anything beyond one tyre size up on the factory tyre size should technically and legally carry the extended flare and mudflap. 300 series standard factory tyres have a wheel rim offset of +60mm.  As JMACX upgrades your GVM, flares are required when you have tyres fitted that are more than 275mm wide, with a max wheel rim offset larger than +60mm.

When fitting these flares if you are having a bull bar fitted then your installer will require trimming to suit the bar for proper fitment with additional caps. Your installer will arrange fitment and painting of your flares, contact them for your colour selection.

Unsure if you really need flares?  We recommend future proofing your vehicle with the flare kit.  Commonly 4×4 owners prefer the larger tyre size that will require the flare kit for road safety and aesthetics purposes.

“Why does the GVM remove the rear seating?”

The 300 Series GVM upgrade makes your vehicle a medium goods carrying vehicle. Goods carrying vehicles over 3500Kg need to have a load carrying space so the rear seats must be removed if you have a model with 7 seats.