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.

Accreditation Logos

Download GVM Upgrade Solutions Brochure here.

GVM Upgrades Products


Ford Ranger PXII 2015 - 7/2018
FOR001CKPGVM1 Ford Ranger 2011-7/2018 GVM Upgrade - Foam Cell Pro - Post Registration Permanent Load 3500kg
FOR001BKPGVM1 Ford Ranger 2011-7/2018 GVM Upgrade - Foam Cell Pro - Post Registration Temp Load 3500kg
FOR001CKPGVM Ford Ranger 2011-7/2018 GVM Upgrade - Foam Cell Pro - Pre Registration Permanent Load 3500kg
FOR001BKPGVM Ford Ranger 2011-7/2018 GVM Upgrade - Foam Cell Pro - Pre Registration Temp Load 3500kg
Holden Colorado RG 2012 - 2016
HOLD021DKFGVM1 Holden RG Colorado 2012-2015 GVM Upgrade - Foam Cell Post Registration Permanent Load 3500kg
HOLD021CKFGVM1 Holden RG Colorado 2012-2015 GVM Upgrade - Foam Cell Post Registration Temp Load 3500kg
HOLD021DKPGVM1 Holden RG Colorado 2012-2015 GVM Upgrade - Foam Cell Pro Post Registration Permanent Load 3500kg
HOLD021CKPGVM1 Holden RG Colorado 2012-2015 GVM Upgrade - Foam Cell Pro Post Registration Temp Load 3500kg
Isuzu D-Max 2012 - 2016
HOLD021DKF1GVM1 Isuzu D-Max 2012-2016 GVM Upgrade - Foam Cell Post Registration Permanent Load 3500kg
HOLD021CKF1GVM1 Isuzu D-Max 2012-2016 GVM Upgrade - Foam Cell Post Registration Temp Load 3500kg
HOLD021DKP1GVM1 Isuzu D-Max 2012-2016 GVM Upgrade - Foam Cell Pro Post Registration Permanent Load 3500kg
HOLD021CKP1GVM1 Isuzu D-Max 2012-2016 GVM Upgrade - Foam Cell Pro Post Registration Temp Load 3500kg