8.9 Inch TRE 4x4 Air Operated Locker suits Toyota Landcruiser
Take your classic Toyota Landcruiser off-road performance to the next level with the 8.9 Inch TRE 4x4 Air Operated Locker. Designed for serious 4WD enthusiasts, this heavy-duty differential locker delivers maximum traction, strength, and reliability in the toughest Australian conditions.
Built to suit a wide range of classic Toyota Landcruiser models including 40, 55, 60, 62, 70, 73, 74, 75 and 80 Series, the TRE 4x4 Air Locker provides the confidence to tackle mud, sand, steep climbs, rocky tracks, and challenging terrain where traction is limited.
Maximum Traction at the Push of a Button
When engaged, the TRE Air Operated Locker locks both axle shafts together, allowing both wheels on the axle to rotate at the same speed. This delivers maximum available traction and helps your Landcruiser maintain forward momentum in difficult off-road conditions.
When extra traction is no longer required, simply disengage the locker and return to normal differential operation for everyday driving.
Key Features
✅ 8.9 Inch TRE 4x4 Air Operated Locker
✅ Suits Toyota Landcruiser 40, 55, 60, 62, 70, 73, 74, 75 & 80 Series
✅ Available for compatible front and rear differential applications
✅ 30 spline design
✅ TRE X-Ring seal housing assembly
✅ Improved air sealing performance and reliability
✅ Advanced wave spring locking mechanism
✅ 4320 chromoly alloy steel gears for maximum strength
✅ Forged 8620 chromoly case for increased durability
✅ Designed for demanding off-road and touring applications
✅ Backed by TRE 4x4's 5-year warranty
Advanced TRE X-Ring Seal Technology
The TRE Air Operated Locker features a seal housing assembly equipped with a specialised TRE X-Ring.
The four-lobed X-Ring design provides a larger sealing surface compared to a standard O-ring while requiring less compression to maintain an effective seal. This reduced compression helps minimise friction and wear, providing a reliable and long-lasting air supply to the locker.
This advanced sealing technology helps ensure consistent locker engagement and dependable performance in harsh off-road environments.
Advanced Wave Spring Locking Design
The inclusion of a wave spring significantly improves the stability and durability of the locking and unlocking mechanism.
Wave springs are approximately 50% shorter than conventional coil springs, allowing for a compact internal design that fits efficiently within limited radial and axial spaces. This eliminates the need for deep spring holes in the clutch gear, helping increase overall strength and durability.
Heavy-Duty Chromoly Construction
For maximum durability and performance, the TRE Air Operated Locker features:
- 4320 chromoly alloy steel gears designed to handle high loads and demanding 4WD conditions
- Forged 8620 chromoly case for increased strength and long-term reliability
These premium materials provide the durability required for serious Landcruiser builds, off-road touring, and extreme terrain use.
Vehicle Compatibility
| Toyota Landcruiser Model | Axle Location | Year | Axle Description | Shaft Diameter | Spline | Ratio |
|---|---|---|---|---|---|---|
| 40, 55, 60, 62, 70, 73, 74, 75 & 80 Series | Front | Up to 1989 | 12 bolt, full floating | 33mm (1.31") | 30 | All |
| 40, 55, 60, 62, 70, 73, 74, 75 & 80 Series | Rear | 1977-1989 | 12 bolt, full floating, 45mm bearing ID | 33mm (1.31") | 30 | All |
| 40, 55, 60, 62, 70, 73, 74, 75 & 80 Series | Rear | 1990-1997 | 12 bolt, full floating, 50mm bearing ID | 33mm (1.31") | 30 | All |
| Lexus LX450 | Front & Rear | Application dependent | Compatible applications | 33mm (1.31") | 30 | All |
Important: Please confirm your vehicle's axle configuration, year, spline count, and differential specifications before ordering to ensure correct fitment.
Why Upgrade Your Landcruiser with an Air Locker?
A standard open differential can send power to the wheel with the least resistance, resulting in wheel spin when traction is limited. An air operated locker eliminates this limitation by locking both wheels together when required.
The TRE 4x4 Air Locker provides improved traction and control for:
- Remote touring
- Off-road adventures
- Mud and sand driving
- Rock crawling
- Heavy-duty 4WD applications
TRE 4x4 5-Year Warranty
For added confidence, TRE 4x4 Air Operated Lockers are backed by a 5-year warranty, ensuring peace of mind in the quality, strength, and reliability of your differential upgrade.
Upgrade your Toyota Landcruiser with the 8.9 Inch TRE 4x4 Air Locker and experience dependable, on-demand traction when you need it most. Designed for classic Landcruiser models and built for serious off-road performance.
Order online from Mr Landcruiser and take your Landcruiser further.
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8.9 Inch TRE 4x4 Air Operated Locker suits Toyota Landcruiser
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