TRE 4x4 Bolt-on Portal Axle — Nissan Patrol Y61 (Gear/Chain Options, 4.5" Hub Lift)

Transform your Patrol Y61 into a portal-equipped beast with the TRE 4x4 Bolt-on Portal Axle system. This conversion relocates the axle centreline with compact portal boxes to deliver around a 4.5-inch lift at the hubs. Suspension pick-up points remain unchanged, meaning you gain serious ground clearance without re-engineering your chassis. Choose between gear-driven or chain-driven portals with multiple ratio options for the ultimate Patrol build.

Key benefits

• ~4.5” hub lift — raises diff pumpkins for exceptional clearance.
• Choice of portal drive — gear-driven (1:1.2 / 1:1.33) or chain-driven (1:1.16 / 1:1.25 / 1:1.27 / 1:1.36).
• Heavy-duty aluminium housings — lightweight yet durable design for hard use.
• Complete system — brake discs, calipers, hoses and reinforcement brackets included.
• Patrol-ready geometry — maintains factory suspension pick-up points.
• Wheel & tyre guidance — recommended 17” wheels (ET +50) and 35–40” tyres (verify clearance).

What’s included (per axle kit)

• Portal hub assemblies — LH & RH (gear- or chain-driven, chosen ratio)
• Brake discs, calipers and hoses
• Reinforcement brackets and mounting hardware
• Application-specific axle parts (varies with configuration)

Contents vary depending on gear vs chain option and front/rear axle. Confirm details with our team before ordering.

Technical specs

Installation & UK notes

• Professional installation required — includes brake and steering modifications.
• Check gearing impact — ratio + tyre size may require diff re-gear.
• Road legality varies — large lifts and tyres may need inspection for MOT/IVA compliance.
• Always torque to spec, bleed brakes, and re-check fasteners after bedding-in.

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FAQs

1) How much lift does this add?
About 4.5 inches at the hub centreline, raising axle pumpkins for off-road clearance.

2) What’s the difference between gear- and chain-driven?
Gear portals use meshed gears (ratios 1:1.2 / 1:1.33). Chain portals use heavy chains (ratios 1:1.16 / 1:1.25 / 1:1.27 / 1:1.36). Choose based on tyre size, crawl needs and packaging.

3) What tyres and wheels are recommended?
Typically 35–40” tyres on 17” wheels with ET +50. Always check clearance and legality first.

4) Is it bolt-on?
Yes. TRE designed the system to retain factory suspension points and minimise chassis modification.

5) What comes in the kit?
Portal hubs (pair), brake discs, calipers, hoses, reinforcement brackets and hardware. Axle parts vary with configuration.

6) Do I need to re-gear?
Likely, depending on tyre size and chosen ratio. Contact us for gearing advice.

7) Is CTIS compatible?
Yes — the system can integrate with central tyre inflation setups for advanced builds.

8) Is it UK road-legal?
Depends on lift, tyres and mods. MOT/IVA compliance may be required; some builds are off-road-only.

Explore related categories: Portal Axles • TRE 4x4 Products