GVM 4495 kg (stays NB1) | GCM 12,474 kg
Stage 3: The Premium Comfort 3in Coilover Conversion
Stage 3 of Offroad Industries' SSM NB1 lift program for the Chevrolet Silverado 2500HD LTZ (2020–2026). It gives the truck a 3in (coilover, torsion bar delete) lift and clearance for 35in or 37in, while keeping the vehicle at 4495 kg GVM — so it stays in the NB1 light-vehicle category and can still be driven on a standard car licence.
Who it suits: Owners who want the smoothest coilover ride engineered and compliant from new.
Specifications
| Vehicle | Chevrolet Silverado 2500HD LTZ · 2020–2026 |
|---|---|
| Factory rating | 4,495 kg GVM (NB1) · 12,474 kg GCM · about 733 kg payload |
| Upgraded GVM | 4495 kg (stays NB1) |
| Upgraded GCM | 12,474 kg |
| Payload | 685 kg |
| Lift | 3in (coilover, torsion bar delete) |
| Tyres | 35in or 37in |
| ORI part number | CHV-2500-STAGE-3-NB1 |
What's in the package
- BDS 3in coilover kit (BDS1831FPE) incl. HD tie rods, upper/lower arms, rear blocks
- Fox 2.5 Performance Elite coilovers front (884-06-337) & rear
- Husky Extenda flares
- ORI mud flap brackets
- ORI ADR lights
Approval & compliance
SSM federally approved, PRE-rego only; stays NB1 at 4495 kg GVM (standard car licence); GMSV vehicles
Why get it fitted by Project Overlander
Fitted in-house
Your package is installed by our own technicians at Smeaton Grange — the same team that builds our full American truck touring setups.
Engineering handled
We take care of the ORI approval paperwork, plates and certification, whether the truck is pre-registration or already on the road.
Build it once
Pair the upgrade with trays, canopies, long range tanks, awnings and 12V from the same workshop — one booking, one warranty contact.
Price is for the package supplied, fitted and engineered. Post-registration upgrades attract additional state engineering and registration fees. Some stages need load-rated wheels and tyres. Final specification is confirmed at quote, based on your vehicle's build and compliance plates. Offroad Industries (ORI) is an independent Australian brand; Project Overlander is an authorised installer.