Troopy GVM Upgrade - What You Need To Know...
The 78 Troopy has the lowest factory payload in the 70 Series range (~975 kg) and the highest tendency to be over GVM once a touring fitout goes on. A GVM upgrade is functionally required for almost any serious Troopy build. This guide covers the cost, supplier options and what to look for.
1. Factory Specs and the Problem
78 Troopy kerb weight approximately 2,325 kg. Factory GVM 3,300 kg. Factory payload approximately 975 kg. After a typical touring fitout (drawer system, water tanks, bed platform, fridge, recovery gear, two adults plus gear) the vehicle is at or over GVM before the fuel tank is full.
2. Common Upgrade Ratings
3,950 kg upgrade adds 650 kg of legal payload - the most popular Troopy GVM target. 4,200 kg adds 900 kg - suited to heavy pop-top touring builds. Some suppliers offer 4,495 kg upgrades requiring brake modifications.
3. Pricing by Supplier and Pathway
Pre-rego GVM upgrades $4,000 to $7,500 fitted from Lovells, Marks 4WD, Multidrive, Tough Dog, EFS and Pedders. The kit price covers springs, shocks, U-bolts, bushings, certification and labour. Post-rego adds $800 to $2,000 for individual engineer certification.
4. Engineering Pathways
Pre-registration: cheapest, manufacturer's federal SSM approval covers certification. Second Stage Manufacture: similar to pre-rego but can be done shortly after rego. Post-registration: most expensive, requires individual engineer's certificate per vehicle, state-specific inspection.
5. When the Upgrade Pays For Itself
Pays for itself the day it stops the vehicle being driven illegally. Beyond legality, the upgrade improves loaded ride quality, protects drivetrain and chassis from over-GVM stress, and preserves resale value. For any touring Troopy fitout the upgrade is the most important early-stage purchase.
Frequently Asked Questions
What is the factory GVM of a 78 Troopy?
3,300 kg, unchanged across the 78 Series production run from 1999 to current. Kerb weight ~2,325 kg, factory payload ~975 kg.
How much does a Troopy GVM upgrade cost?
$4,000 to $7,500 pre-rego fitted. Post-rego add $800 to $2,000 for engineering.
What is the best Troopy GVM rating?
3,950 kg is the most popular for touring fitouts. 4,200 kg for heavy pop-top builds. Both achievable from Lovells, Marks 4WD, Multidrive, Tough Dog and others.
