2-Inch Lift Kits & WoF Rules in NZ: What’s Legal Without a Cert

The single most common question we get in the workshop: “will a 2-inch lift pass a WoF?” The short answer is yes — a 2″ (50mm) lift is the legal sweet spot in New Zealand. But there’s a bit more to it, and getting it wrong means a failed WoF or an expensive cert you didn’t budget for. Here’s the full picture.

The 50mm rule

• Up to 50mm of total lift: no LVV certification needed. Your truck still has to pass a normal WoF, but there’s no cert and no LVV plate.
• Over 50mm: you need an LVV certifier inspection and an LVV certification plate fitted to the vehicle. No plate where one is required = an automatic WoF fail.
• “Total” means total. Body lift and suspension lift add together. A 25mm body lift on top of a 50mm suspension lift = 75mm total = cert required. People forget this constantly.

What a legal 2″ lift STILL needs to pass a WoF

“No cert” doesn’t mean “no work”. A 50mm lift changes your geometry, and a WoF inspector will check:

1. Headlight aim. Lifting the truck raises the beam angle — a very common fail. Lights must be re-aimed after a lift. We do this as part of fitting.
2. Wheel alignment. Camber and caster change with the lift. Skipping the alignment chews out tyres and ruins the handling — get it done.
3. Driveline angles. On some utes a diff-drop or upper control arms are needed to keep CV and tailshaft angles healthy. We’ll tell you if your specific model needs them.
4. Brake lines & bump stops. Lines must still reach with full droop, and bump stops set so nothing strikes at full compression.

Bigger tyres count too

Going up in tyre size effectively raises the truck further and slows your speedo reading. Two NZ rules to watch:

• Speedo accuracy: your speedometer must not read more than 10% below your true speed. Larger-diameter tyres make it under-read — two sizes up usually means you need a speedo recalibration or correction device.
• Tyre protrusion: tyres must not poke out past the guards through the full arc of travel. Wide tyres on stock guards are the most common lift-related WoF fail we see. Flares or mudflaps fix it.

Going bigger than 2″?

Totally doable — just budget for the LVV cert. The certifier inspects the full suspension, geometry, brake lines, bump stops and driveline angles, and issues the LVV plate. Use a reputable kit (the brands certifiers know well make the process smoother) and have it fitted properly. We supply and fit kits that certifiers are comfortable with, which takes the friction out of certification.

Quick reference

• 2″ (50mm) lift, stock-ish tyres → ✅ no cert; align & re-aim lights.
• 3″ (75mm)+ lift → ❌ needs LVV cert + plate.
• 25mm body + 50mm suspension → ❌ that’s 75mm total, cert required.
• Two tyre sizes up → ⚠️ check speedo (10% rule) and guard protrusion.

Shop 2″ lift kits filtered to your truck, or check your whole build with the WoF Mod Checker. This is legal-adjacent stuff — when in doubt, talk to us or your local LVV certifier.