Offroad Industries

Unleash the Full Potential of Your Chevy Silverado 1500 2019 - 2026

Stop worrying about weight limits and start adventuring with confidence. Offroad Industries (ORI) offers the most comprehensive, Federally Approved GVM (Gross Vehicle Mass) upgrades for the Chevy Silverado 1500 (LTZ, Trail Boss, and ZR2). 

By bundling the ORI GVM Packages &  GCM testing and the combination of LS16 certification, you are offering a legal "Super-Truck" status. The LS16 code is the secret sauce here: it’s the specific modification code for Gross Combination Mass Re-rating, ensuring the truck, the gear, and the massive 4.5T trailer are all

100% legal together for either PRE or Post Rego

Whether you’re a weekend explorer, a tradie with a heavy load, or a serious tourer towing a 4.5T caravan, our staged packages transform your truck’s legality, safety, and performance.

*Please note that some workshops may apply additional discretionary administration fees to the quoted installation and engineering price. Additionally, all Post-Registration GVM upgrades will incur additional local fees. Shipping is not included in the price.

ORI GVM & GCM PACKAGES

Stage 1 LTZ: Installed & Engineered — Contact for Pricing Stage 1 LTZ: 4-Inch Lift on 35s (3650kg GVM + GCM 8150kg)

The entry point to the 6-inch program: a genuine four-inch lift on 35s, with the GVM and GCM re-rated to match.

  • GVM: 3650kg (approx. 1077kg payload, a 42.28% increase) | GCM: 8150kg | Braked Towing: 4500kg
  • Lift & Tyres: 4" lift, running up to 35x12.5 R18 or 35x12.5 R20.
  • Key Features: BDS 4" suspension kit with Fox 2.5 Performance Elite (BDS1757FPE), Rough Country SF1 flares, Bushwacker Extenda flares, ORI mud flap brackets.
  • Best For: LTZ owners who want the lifted stance and 35s without giving up any towing capacity, and who need the one-tonne payload for ATO purposes.
  • Part Number: CHV-1500-Stage1-GVM
Stage 2 ZR2: Installed & Engineered — Contact for Pricing Stage 2 ZR2: 2-Inch Lift on 35s (3650kg GVM + GCM 8150kg)

The ZR2 equivalent, keeping the truck nearer factory height while unlocking the same payload and the same 35" tyre.

  • GVM: 3650kg (approx. 1077kg payload, a 42.28% increase) | GCM: 8150kg | Braked Towing: 4200kg
  • Lift & Tyres: 2" lift, running up to 35x12.5 R18 or 35x12.5 R20.
  • Key Features: BDS 4" suspension kit with Fox 2.5 Performance Elite (BDS1757FPE), Rough Country SF1 flares, ORI mud flap brackets.
  • Best For: ZR2 owners, who already sit higher from the factory and need less lift to clear the same 35" tyre.
  • NOTE: The ZR2 tows 4200kg from the factory, which is why this stage is rated to 4.2T rather than 4.5T.
  • Part Number: CHV-1500-Stage2-GVM
Stage 3 LTZ: Installed & Engineered — Contact for Pricing Stage 3 LTZ: 6-Inch Lift on 37s (3650kg GVM + GCM 7160kg)

The full six inches on 37s, engineered and certified as a single package.

  • GVM: 3650kg (approx. 1077kg payload, a 42.28% increase) | GCM: 7160kg | Braked Towing: 4500kg
  • Lift & Tyres: 6" lift, running up to 37x12.5 R18 or 37x12.5 R20.
  • Key Features: BDS 6" suspension kit with Fox 2.5 Performance Elite (BDS782FPE), Rough Country SF1 flares, Bushwacker Extenda flares, ORI mud flap brackets.
  • Best For: LTZ owners who want the biggest lift and the biggest tyre in the program, fully compliant and covered under our SSM approval.
  • NOTE: Gross Combined Mass stays at the factory 7160kg on this stage.
  • Part Number: CHV-1500-Stage3-GVM
Stage 4 ZR2: Installed & Engineered — Contact for Pricing Stage 4 ZR2: 4-Inch Lift on 37s (3650kg GVM + GCM 7160kg)

The ZR2 on 37s, running the same six-inch hardware set to a four-inch ride height.

  • GVM: 3650kg (approx. 1077kg payload, a 42.28% increase) | GCM: 7160kg | Braked Towing: 4200kg
  • Lift & Tyres: 4" lift, running up to 37x12.5 R18 or 37x12.5 R20.
  • Key Features: BDS 6" suspension kit with Fox 2.5 Performance Elite (BDS782FPE), Rough Country SF1 flares, ORI mud flap brackets.
  • Best For: ZR2 owners chasing the 37" tyre package on a build that is legal to drive away.
  • NOTE: Aftermarket wheels are required for this stage.
  • NOTE: The ZR2 tows 4200kg from the factory, which is why this stage is rated to 4.2T rather than 4.5T.
  • Part Number: CHV-1500-Stage4-GVM-200 or CHV-1500-Stage4-GVM-400

ORI Chevy Silverado GVM & GCM Specfications

OEM
Stage 1 LTZ
Stage 2 ZR2
Stage 3 LTZ
Stage 4 ZR2
Gross Vehicle Mass (GVM)
3300 KG
3650 KG
3650 KG
3650 KG
3650 KG
Braked Towing Capacity (BTC)
4500 KG
4500 KG
4200 KG
4500 KG
4200 KG
Gross Combined Mass (GCM)
7160 KG
8150 KG
8150 KG
7160 KG
7160 KG
Kerb Weight
2543 KG
2643 KG
2643 KG
2643 KG
2643 KG
Payload (bases on kerb weight)
757 KG
1077 KG
1077 KG
1077 KG
1077 KG
Payload Increase (%)
0%
42.28%
42.28%
42.28%
42.28%
Front Axle Capacity
1724 KG
1724 KG
1724 KG
1724 KG
1724 KG
Rear Axle Capacity
1724 KG
1926 KG
1926 KG
1926 KG
1926 KG
Wheel Offsets
28
Wheel Load Rating
862 KG
963 KG
963 KG
963 KG
963 KG
Tyre Load Rating
862 KG
963 KG
963 KG
963 KG
963 KG
Requires Wheel/ Tyre Upgrade
OEM
N/A
N/A
N/A
N/A
Maximum Tyre Size
275/60 R20
35x12.5R18
35x12.5R20
35x12.5R18
35x12.5R20
37x12.5R18
37x12.5R20
37x12.5R18
37x12.5R20
Item
Part Number
Stage 1
Stage 2
Stage 3
Stage 4
Lift Height
4"
2"
6"
4"
BDS Control Arms
BDS121260
BDS 4" Suspension Kit with Fox 2.5 Performance Elite
BDS1757FPE
✔
✔
BDS 6" Suspension Kit with Fox 2.5 Performance Elite
BDS782FPE
✔
✔
Rough Country SF1 Flares (ZR2 & LTZ)
F-C319201A-ZR2
✔
✔
✔
✔
Bushwacker Extenda Flare (LTZ)
2804994
✔
✔
ORI Mud Flaps Brackets
✔
✔
✔
✔
After Market Wheels Required
✔
GVM Part Numbers
CHV-1500-Stage1-GVM
CHV-1500-Stage2-GVM
CHV-1500-Stage3-GVM
CHV-1500-Stage4-GVM-200
CHV-1500-Stage4-GVM-400

Approved Method Wheels

DESCRIPTION
MR305NV
MR709 HD Bead Grip
MR709 HD Bead Grip
COLOUR
Double Black Matte Black Titanium Machines
Matte Black & Machined
Machined
OFFSET
+18 +12 Zero, - 12
Note: -12 will require DRT Fender Flares not husky extenda
Pos 12
Pos 12

MR305NV

COLOUR
Double Black Matte Black Titanium Machines
OFFSET
+18 +12 Zero, - 12
Note: -12 will require DRT Fender Flares not husky extenda

MR709 HD Bead Grip

COLOUR
Matte Black & Machined
OFFSET
Pos 12

MR709 HD Bead Grip

COLOUR
Machined
OFFSET
Pos 12

GVM Enquiry? Contact us Now

Ori's Suspension Collection