Tyreco is authorized to supply and fit West Coast Suspensions GVM suspension upgrades for many of today’s popular vehicles. This enables the operator to legally carry up to 600kg over the factory stipulated GVM.
Each GVM suspension upgrade is issued with a silver or green modification compliance plate fitted next to the OEM compliance plate, stating vehicle particulars and approval number issued as Second Stage Manufacture. The suspension modification and fixing of the silver modification plate must be done prior to any other modifications and must be done prior to the vehicle being licensed.
For vehicles that have already been road registered, the vehicle will be required to be inspected by an Department of Transport authorised Inspection station in order to be issued with a compliance certificate.
GVM upgrade kits consists of:
4 Heavy duty shock absorbers 2 Coil springs
2 Leaf springs 4 U/bolts
2 Swinging shackles 2 Fixed pins
1 Brake valve spacer block (76, 78 & 79) 1 Shackle bush kit
1 Compliance Plate
Current Vehicles available for GVM Upgrades
| Make & Model | Factory GVM (kg) | RVCS Approval # | Extra Load (kg) | WCS GVM (kg) |
| Ford Ranger 2 | 3200 | 47899 | 300 | 3500 |
| Holden RG Colorado | 3150 | 49093 | 150 | 3300 |
| Isuzu D-Max | 3050 | 49113 | 250 | 3300 |
| Toyota Gen 8 Hilux | 3000 | 47898 | 300-500 | 3300-3500 |
| Toyota VDJ79 Cruiser S/Cab | 3400 | 47230 | 500 | 3900 |
| Toyota VDJ79 Cruiser D/Cab | 3300 | 47230 | 600 | 3900 |
| Toyota VDJ78 Cruiser Wagon | 3300 | 47230 | 600 | 3900 |
| Toyota VDJ76 Cruiser Wagon | 3060 | 47230 | 440 | 3500 |
| Toyota 150 Series Prado Wagon | 2990 | 50666 | 510 | 3500 |
| Toyota 200 Cruiser Wagon (NB1) | 3350 | 49103 | 450 | 3800 |
| Toyota 200 Cruiser Wagon (MC) | 3350 | 49557 | 450 | 3800 |
