The usable payload of many 4x4 vehicles today is minimal. Additional basic optional equipment along with two or three adult occupants will bring the vehicle close to its legal maximum weight (GVM) in many cases. Add long range fuel tanks, bull bars, winches, side steps, roof racks, recovery gear and a payload of camping equipment or an industrial type custom body and the vehicle will ultimately exceed the Original Equipment allowable Gross Vehicle Mass.

Original Equipment suspension is designed for comfort above all other considerations, thus load carrying and performance can be compromised. Whereas, Ironman 4x4 GVM upgraded suspension systems come with matched components for the ultimate in performance, load carrying and handling.

Ironman 4x4 products are extensively tested in real world conditions, both in-house and by independent automotive engineers to ensure conformity and operator comfort.

Ironman 4x4 regularly maintains and reviews its own internal processes and procedures as part of our ISO 9001 Quality Management System certification.

Formal testing verifies product safety and performance through official certifications issued by independent testing agencies and Government departments, including DOTARS, TÜV Nord and KBA.

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Download GVM Upgrade Solutions Brochure here.

GVM Upgrades Products


Isuzu D-Max 2017+
HOLD021DKF1GVM1 Isuzu D-Max 2017+ GVM Upgrade - Foam Cell Post Registration Permanent Load 3500kg
HOLD021CKF1GVM1 Isuzu D-Max 2017+ GVM Upgrade - Foam Cell Post Registration Temp Load 3500kg
HOLD021DKP1GVM1 Isuzu D-Max 2017+ GVM Upgrade - Foam Cell Pro Post Registration Permanent Load 3500kg
HOLD021CKP1GVM1 Isuzu D-Max 2017+ GVM Upgrade - Foam Cell Pro Post Registration Temp Load 3500kg
Toyota Hilux 2005-2011
TOY057DKFGVM1 To suit Hilux 2005+ GVM Upgrade - Foam Cell - Post Registration Permanent Load 3350kg
TOY057CKFGVM1 To suit Hilux 2005+ GVM Upgrade - Foam Cell - Post Registration Temp Load 3350kg
TOY057DKPGVM1 To suit Hilux 2005+ GVM Upgrade - Foam Cell Pro - Post Registration Permanent Load 3350kg
TOY057CKPGVM1 To suit Hilux 2005+ GVM Upgrade - Foam Cell Pro - Post Registration Temp Load 3350kg
Toyota Hilux Revo 2015-2018
TOY077DKFGVM1 To suit Hilux 2015-2018 GVM Upgrade - Foam Cell - Post Registration Permanent Load 3510kg
TOY077CKFGVM1 To suit Hilux 2015-2018 GVM Upgrade - Foam Cell - Post Registration Temp Load 3510kg
TOY077DKFGVM To suit Hilux 2015-2018 GVM Upgrade - Foam Cell - Pre Registration Permanent Load 3510kg
TOY077CKFGVM To suit Hilux 2015-2018 GVM Upgrade - Foam Cell - Pre Registration Temp Load 3510kg