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JMACX 300 Series - 4200Kg GVM

Standard GVM Inclusions:

  • JMACX 300 Series Upgraded Diff Housing - NON KDSS (GX, GXL, VX, Sahara, Sahara ZX)
  • 300 Series Alpha Shocks
  • 2-3 Inch 300 Series Rear Coils Variable Load
  • 2-3 Inch High Pressure Airbag Man Airbags
  • Rear Lower Trailing Arms To Suit 300 Series
  • Adjustable Rear Panhard To Suit 300
  • Ironman 300 Series Front Upper Control Arm (Pair)
  • 300 Series Extended Sway bar Links Super Pro
  • CAT 5-6 Indicator Kit
  • Cat 5/6 Loom Extension
  • 300 Series Reverse Light Kit
  • 300 Series Headlight Adjuster
  • 300 Series Flare Kit
  • 4200 GVM 300 Series IPA Engineering Fee
  • Australia Wide Shipping and Handling
  • GVM Compliance Sticker Kit

Labour:

  • Labour To Fit 300 Series 4200 Suspension Kit
  • Labour To Fit Alpha Electric Shocks
  • Labour To Remove Rear Seating For NB1
  • Labour To Paint & Fit 300 Series Flares
  • Labour To Fit Reverse Light & Cat 5/6 Indicators
  • Workshop Consumables
  • Workshop Consumables Diff Oil
  • Wheel Alignment

Discover The JMACX Difference.

Looking for a GVM upgrade on your Toyota Landcruiser 300 series? We have you covered with the 300 Series 3800 GVM Upgrade. Including premium suspension increased ground clearance with 2 or 3 inch lift. Nothing rides like the Alpha Shocks included in the 300 Series GVM upgrade along with other premium suspension parts. This kit is well suited for you with unrivalled handling on and off road, allowing you to tow safely that big caravan or boat to the destination or head off into the bush. Nothing will stop you.

GVM Upgrade Specifications


SpecificationsFactoryJMACX GVM
GVM3280 Kg4200 Kg
BTC3500 Kg*3500 Kg*
Front Axle Load1630 Kg1800 Kg
Rear Axle Load1930Kg2800 Kg
Lift2 Inch Max2-3 Inch*
Tyre Size33 Inch Max33-35 Inch*
Wheel/Tyre LoadModel Varies1400 Kg / Q Rated
ApprovalFactory ApprovalSSM 61244

Wheel and Tyre Requirements

  Please note: All GVM upgrades that get an axle load increase will be required to have load rated wheels and tyres to suit the new axle load requirement. This GVM kit has a new rear axle load rating of 2800kg thus resulting in wheels needing a minimum load rating of 1450kg and a tyre load index of no less then 121ply. These wheels and tyres must be fitted to the vehicle before the GVM can be approved pre or post rego. Contact your installer to purchase your tyres and wheels directly or supply your own.

70 Series Alpha Shocks Construction

Thousands of hours invested in R&D to provide a premium product with ultimate performance on and off road.

True 2.5 inch (63.5mm) internal bore. Many claim to be 2.5″ yet they are often 2.5″ external body diameter.

4140 hard chrome faced microcracked 22mm shaft polished for increased lubrication and longevity. Pressure active shaft seals.

Up to 3 times the force of adjustment than other aftermarket shocks allowing for greater variation of adjustment.

CNC machined piston performance port configuration. Variable rate shim stack enhancing vehicle damping performance.

Unlike competitors our spherical bearings in Alpha struts are sealed and greaseable preventing premature failure.

Materials sourced and machined all within Australia. Support network nation wide no matter where you are.

This protects your vehicle from damage and provides more control as the shock approaches full compression, increasing damping force to combat suspension bottoming during high-velocity suspension movements.  

Made from better quality materials while maintaining softness for ride quality, daubable enough to handle tough conditions for extended periods of time.  

Unlike our competitors, the spherical bearings in Alpha struts are sealed and greaseable protecting from the elements and preventing premature failure.  

Shocks can be revalved (finely tuned), serviced and fully rebuilt to your requirements as every car weighted different.

See it in action - Alpha 2.5 Electric shocks

The 70 Series Alpha Shocks are built designed and tuned specifically for the 4×4 and GVM market. Whether your going off road, towing, 4 wheel driving or daily driving Alpha Shocks achieve optimum comfort, stability for you and your be it a 79 Series 78 Troop Carrier or 76 Series Wagon. These shocks are apart of our GVM upgrades for the LC70 as well as our suspension lift kits.

4200Kg GVM Upgrade Enquiry