TRE 4x4 Bolt-on Portal Axle — Toyota Land Cruiser 80 (Gear- or Chain-Driven, 4.5" Hub Lift)

Give your Land Cruiser 80 true portal clearance with the TRE 4x4 Bolt-on Portal Axle upgrade. This system relocates the axle centreline using compact portal boxes to deliver around a 4.5-inch lift at the hubs while keeping factory suspension pick-up points intact. Choose gear-driven or chain-driven portals and match the bolt-on reduction ratio to your tyre size for serious off-road control and ground clearance without cutting or custom housings.

Key benefits

• Major ground-clearance gain: approx. 4.5" hub lift improves break-over and diff pumpkin height.
• Selectable architecture: gear-driven (ratios 1:1.2 / 1:1.33) or chain-driven (ratios 1:1.16 / 1:1.25 / 1:1.27 / 1:1.36).
• Aluminium integrated housings: lightweight, high-strength portal boxes designed for harsh terrain.
• Engineered package: kits include brake discs, calipers, hoses and reinforcement brackets for a cohesive conversion.
• Tyre and wheel guidance: suggested 35–40" tyres, 17" wheels and ET +50 offset (check fitment).
• Keeps OEM suspension geometry: bolt-on approach minimises chassis changes.

What’s included (per axle kit)

• Portal hub assemblies — left & right (gear- or chain-driven, chosen ratio)
• Brake package — discs, calipers and brake hoses matched to the portal units
• Reinforcement brackets and application-specific hardware
• Axle-side components (e.g., extended/compatible shafts where required by application)

Contents may vary slightly with gear vs chain-driven options and front/rear selection; we’ll confirm your exact kit at checkout.

Specs & options

Figures and options per TRE technical listings. Always verify wheel/tyre/fender clearance and gearing before ordering.

Installation & UK legal notes

• Professional installation required. Braking and steering components are modified; geometry checks and a full alignment are essential.
• Speedometer/ABS/ESP: ratio changes and tyre size may affect readings and calibration.
• Road legality: ride-height/tyre protrusion rules vary; check UK MOT/IVA requirements before road use.
• Post-fit checks: bleed brakes, torque to spec, re-check fasteners after heat cycles and first 500 miles.

You might also like

• Portal Axle Upgrades — shop our full portal range.
• Werewolf Portal Axles for LC80 — alternative bolt-on solution.
• TRE 4x4 — brand range

FAQs

1) What’s the difference between gear- and chain-driven portals?
Gear-driven units use meshed gears and offer ratios like 1:1.2 and 1:1.33; chain-driven units employ heavy-duty chains with ratios such as 1:1.16, 1:1.25, 1:1.27 and 1:1.36. Choice depends on tyre size, desired crawl and packaging.

2) How much lift do portals add?
About 4.5 inches at the hub centreline, increasing diff pumpkin clearance without altering spring mounts.

3) What wheels and tyres should I run?
TRE suggests 17" wheels with approx. ET +50 and 35–40" tyres, subject to checking steering/brake clearance and local regulations.

4) Is the kit bolt-on?
Yes. The design aims to preserve OEM mounting points and specs with minimal vehicle modifications compared to full axle swaps.

5) What’s included in the kit?
Portal hubs (pair), brake discs/calipers/hoses, reinforcement brackets and application hardware; axle-side parts may vary per configuration.

6) Will I need to re-gear the diffs?
Portal ratio plus tyre size will change effective gearing; many builds re-gear to restore drivability. Discuss with us for recommendations.

7) Can I use CTIS?
TRE indicates compatibility with Central Tyre Inflation Systems (CTIS) to adapt pressures for terrain (advanced builds only).

8) Is this road-legal in the UK?
Legality depends on lift, tyres and other mods. Check UK MOT/IVA rules; some setups may be off-road-only.

Explore related categories: Portal Axle Upgrades • Werewolf LC80 Portal Kit • TRE 4x4 Brand