Chevrolet Silverado 2500 GVM Upgrade
Chevrolet Silverado 2500 · Australian GVM Specialists

Carry More. Stay Legal. Tow Hard.

GVM Upgrades Now Available

Increase your legal payload up to 5,828kg GVM with fully engineered, compliance-ready upgrades using Fox 2.5 Shocks, Airbags & BDS Suspension.

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5,828kg
Max GVM
Up to
5.8T
GVM
The Problem

Factory GVM
Was Never
Enough.

Fit a tray, canopy, drawer system, rooftop gear or hook up a heavy caravan — and suddenly you're over GVM, unsafe, and technically illegal on every single trip.

We build fully engineered GVM upgrade packages for the Silverado 2500 designed to increase your legal payload without compromising safety, handling, or compliance. Every upgrade comes with complete compliance paperwork accepted nationally.

⚠ If you're building your Silverado 2500 — you're probably going to be overweight
  • ✕Over GVM — every trip is technically illegal
  • ✕Unsafe under braking with a full load
  • ✕At risk of insurance void in an accident
  • ✕Non-Compliant for ATO Tax Deduction
  • ✕Factory towing limits become your ceiling

Being over weight isn't rare.
It's most builds.
Fix yours properly.

America's Garage GVM Upgrades for the Silverado 2500 are available in both Pre-Registration and Post-Registration options in Qld, NSW and Victoria and installed by vetted workshops.

Book a GVM Upgrade →
GVM Packages

Pick Your
Upgrade

Pre & Post Rego approved options. All prices include Engineering and installation. Freight not included.

2500 LTZ Entry
$12,500
*Freight not included
GVM
4,800kg
Lift
2"
Payload
1,500kg
GCM
9,500kg
Pre-Rego Tow
4,500kg
Post-Rego Tow
4,500kg
  • ✓Front Fox Performance Series 2.5" Coilover Shocks
  • ✓Rear Fox Performance Series 2.5" Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX 2" Lifted Rear Leaf Pack, 0–200kg
  • ✓SSM Federal Engineering
  • ✓Installation

Engineered for daily driving and touring. Enhanced ride comfort, improved control, and ATO-compliant payload.

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2500 LTZ Touring
$17,499
*Freight not included
GVM
5,200kg
Lift
2"
Payload
1,900kg
GCM
9,900kg
Pre-Rego Tow
4,500kg
Post-Rego Tow
4,500kg
  • ✓Front Fox Performance Elite Series 2.5" Coilover Remote Reservoir DSC Shocks
  • ✓Rear Fox Performance Elite Series 2.5" Remote Reservoir DSC Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX 2" Lifted Rear Leaf Pack, 0–200kg
  • ✓SSM Federal Engineering
  • ✓Installation

Ideal for loaded touring builds needing extra payload capacity and full tax-compliant compliance.

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2500 LTZ Heavy Duty
$17,499
*Freight not included · Requires wheel/tyre upgrade
GVM
5,828kg
Lift
2"
Payload
2,528kg
GCM
10,528kg
Pre-Rego Tow
4,700kg
Post-Rego Tow
4,700kg
  • ✓Front Fox Performance Elite Series 2.5" Coilover Remote Reservoir DSC Shocks
  • ✓Rear Fox Performance Elite Series 2.5" Remote Reservoir DSC Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX 2" Lifted Rear Leaf Pack, 200kg or 400kg
  • ✓SSM Federal Engineering
  • ✓Installation

Built for serious touring and towing setups with maximum payload capacity and full tax-compliant compliance.

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2500 HD Entry
$13,500
*Freight not included
GVM
4,800kg
Lift
2"
Payload
1,500kg
GCM
9,500kg
Pre-Rego Tow
4,700kg
Post-Rego Tow
4,700kg
  • ✓Front Fox Performance Series 2.5" Coilover Shocks
  • ✓Rear Fox Performance Series 2.5" Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX HD Rear Leaf Pack, 0–200kg
  • ✓SSM Federal Engineering
  • ✓Installation

Entry-level GVM compliance for the 2500 HD — add legal payload capacity while retaining factory ride balance.

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2500 HD Touring
$18,499
*Freight not included
GVM
5,200kg
Lift
2"
Payload
1,900kg
GCM
9,900kg
Pre-Rego Tow
4,700kg
Post-Rego Tow
4,700kg
  • ✓Front Fox Performance Elite Series 2.5" Coilover Remote Reservoir DSC Shocks
  • ✓Rear Fox Performance Elite Series 2.5" Remote Reservoir DSC Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX HD Rear Leaf Pack, 0–200kg
  • ✓SSM Federal Engineering
  • ✓Installation

Full Fox remote res upgrade for the 2500 HD — serious payload compliance with touring-grade damping.

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2500 HD Heavy Duty
$18,499
*Freight not included · Requires wheel/tyre upgrade
GVM
5,828kg
Lift
2"
Payload
2,528kg
GCM
10,528kg
Pre-Rego Tow
4,700kg
Post-Rego Tow
4,700kg
  • ✓Front Fox Performance Elite Series 2.5" Coilover Remote Reservoir DSC Shocks
  • ✓Rear Fox Performance Elite Series 2.5" Remote Reservoir DSC Shocks
  • ✓BDS Suspension Upper Control Arms
  • ✓AMTRUX HD Rear Leaf Pack, 200kg or 400kg
  • ✓SSM Federal Engineering
  • ✓Installation

Maximum 2500 HD payload with heavy-duty leaf pack — built for tray, canopy and serious work setups.

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Find Your Fit

Which GVM Is
Right For You?

Your GVM target depends on your build. Here's our recommendation based on how you run your Silverado 2500.

5,500
Stock / Light Build
Running your Silverado 2500 with a canopy, basic drawers, tools, or light touring setup. The 5,500kg tier delivers proper payload headroom with the widest range of lift options — from stock height through to 5" lift.
Daily DriverLight TouringPre & Post RegoATO Compliant
5,828
Tray, Canopy & Touring Rigs
Built for loaded touring rigs, tray and canopy setups, or builds carrying constant rear weight. The 5,828kg tier adds meaningful payload beyond the 5,500kg — available in 3" lift and 5" lift options.
Tray & CanopyHeavy TouringCaravan Ready
What's Included

Built With The
Best Components

Every America's Garage Silverado 2500 GVM Upgrade uses premium, proven components — no budget alternatives.

🦊

Fox 2.5 FPE & HTO Shocks

Available as standard shocks or full coilover conversion. Fox FPE (Factory Performance Edition) delivers superior heat management and consistent damping under load. HTO provides excellent entry-level Fox performance.

🔩

OK 2.5 RR Remote Reservoir Shocks

Remote reservoir shocks providing excellent performance and compliance certification at a sharper price point. Available across select 5,500kg and 5,828kg packages as a proven alternative to Fox.

⚙️

Airbags, SuperSprings & Leaf Support

Rear load support systems ranging from Airbags through to SuperSprings, Leaf Packs, and Leaf Resets — matched to each GVM tier and lift height for certified compliance and optimal load handling.

📋

SSM Federal Engineering

Full compliance engineering certification from SSM — accepted nationally for pre and post rego approval. Every upgrade comes with complete paperwork across QLD, NSW, VIC, SA, TAS, and ACT.

Side by Side

GVM Upgrade
Comparison

Chevrolet Silverado 2500 — Factory vs All Upgrade Options

← Swipe to see full table →
Details Factory LTZ Entry LTZ Touring LTZ Heavy Duty HD Entry HD Touring HD Heavy Duty
Core Ratings
GVM 3,300kg 4,800kg 5,200kg 5,828kg 4,800kg 5,200kg 5,828kg
Payload ~800kg 1,500kg 1,900kg 2,528kg 1,500kg 1,900kg 2,528kg
GCM — 9,500kg 9,900kg 10,528kg 9,500kg 9,900kg 10,528kg
Lift Height — 2" 2" 2" 2" 2" 2"
Towing Capacity
Pre-Rego Tow — 4,500kg 4,500kg 4,700kg 4,700kg 4,700kg 4,700kg
Post-Rego Tow — 4,500kg 4,500kg 4,700kg 4,700kg 4,700kg 4,700kg
Package Inclusions
Front Shocks — Fox 2.5" PSCoilover Fox 2.5" PESCoilover R/R DSC Fox 2.5" PESCoilover R/R DSC Fox 2.5" PSCoilover Fox 2.5" PESCoilover R/R DSC Fox 2.5" PESCoilover R/R DSC
Rear Shocks — Fox 2.5" PS Fox 2.5" PESR/R DSC Fox 2.5" PESR/R DSC Fox 2.5" PS Fox 2.5" PESR/R DSC Fox 2.5" PESR/R DSC
Upper Control Arms ✕ ✓BDS Suspension ✓BDS Suspension ✓BDS Suspension ✓BDS Suspension ✓BDS Suspension ✓BDS Suspension
Rear Leaf Pack — AMTRUX 2"Lifted · 0–200kg AMTRUX 2"Lifted · 0–200kg AMTRUX 2"Lifted · 200 or 400kg AMTRUX HD0–200kg AMTRUX HD0–200kg AMTRUX HD200 or 400kg
SSM Federal Engineering ✕ ✓ ✓ ✓ ✓ ✓ ✓
Requires Wheel/Tyre Upgrade ✕ ✕ ✕ ✓ ✕ ✕ ✓
Part Numbers
Part Number — AG802001-48F1-10 AG802001-52F2-10 AG802001-58F2-10 AG802002-48F1-10 AG802002-52F2-10 AG802002-58F2-10
Why America's Garage

Not Just Another
GVM Program

01

The Most Complete Program

Over 20 certified kit options across three GVM tiers and five lift heights — more options than any other program on the market. We match you to the right build, not the easiest sale.

02

Vetted Installers Only

We can't have any random workshop touching your truck. Every installer in our network has been vetted by us personally — quality work done by legends.

03

Full Engineering Papers

Every upgrade is backed by SSM Federal Engineering and full compliance paperwork — accepted nationally across QLD, NSW, VIC, SA, TAS, and ACT. Pre-rego and post-rego options available.

04

Best Support in the Game

With over 20 kit options available, guidance matters. Our GVM experts will walk you through the right choice for your specific build, state, and budget — before and after installation.

Got Questions

Silverado 2500 GVM
Frequently Asked Questions

Everything you need to know before you upgrade.

The Silverado 2500 GVM program is designed to match your exact build — not force you into a one-size-fits-all package. Start with your GVM target (how heavy your build will be), then choose your preferred lift height (stock, 2", 3", or 5"), then select your shock preference (Fox FPE for best performance, OK RR for value). Our team can walk you through the right combination for your specific setup in minutes — just call or enquire.
Standard shock kits (Fox FPE, Fox HTO, OK RR) replace the existing shocks with upgraded units while retaining the factory spring setup. A coilover conversion replaces both the shock and the spring in a single integrated unit — this allows more precise ride height adjustment, finer tuning of spring rate, and typically superior ride quality, particularly under sustained load.
Airbags are airbag units that inflate and deflate based on load — great for variable load situations. SuperSprings are supplemental leaf spring inserts providing a passive load boost without active adjustment. A Leaf Pack replaces the rear leaf springs entirely with a heavier-rated setup. A Leaf Reset involves removing, resetting, and reassembling the existing leaf springs to optimise ride height and load capacity for the new GVM rating.
Yes — all Silverado 2500 GVM packages require load-rated wheels and tyres. When you increase the GVM, the tyres and wheels must be rated to legally support the increased axle loads. This is a compliance requirement, not cosmetic. Fitting incorrect tyres after a GVM upgrade creates a certification gap that can affect insurance, registration, and legal liability.
The Silverado 2500 GVM program uses two providers — TransMod and Outback Kitters. TransMod covers the stock-height and 2" lift packages at the 5,500kg GVM tier. Outback Kitters covers the 3" and 5" lift options across the 5,500kg and 5,828kg GVM tiers. Both providers operate under SSM Federal Engineering compliance.
Pre-registration upgrades are generally simpler and cleaner — the vehicle is upgraded before first registration, making the compliance pathway more straightforward. Post-registration upgrades are available on all our Silverado 2500 packages and are a great option for owners who already have their vehicle. Both pathways lead to the same certified outcome.
No — you should never change suspension components after a GVM upgrade has been approved without confirming whether the changes are covered by the existing certification. The upgrade is approved as a complete package. Changing any components after certification can void the approval and create compliance, insurance, and legal problems.
Get Started

Ready to Sort
Your GVM?

Talk to one of our GVM experts. We'll find the right kit for your Silverado 2500 build, your state, and your budget.

📞 Call Us Now ✉ Send an Enquiry
Or call us direct
0483 939 770

Our GVM experts are ready to help — Mon–Fri, 8am–5pm AEST