Increased Traction

Diff locks ensure power is evenly distributed to both wheels, reducing wheel spin and keeping you moving in challenging conditions. Whether tackling mud, sand, or rocky terrain, you'll experience better grip and control where it matters most.

Handling & Stability

By improving how power is delivered to the wheels, diff locks enhance vehicle stability on uneven terrain. Whether climbing steep inclines or navigating technical trails, you'll maintain better control and reduce strain on your drivetrain.

A Smart Solution

With options like automatic torque-biasing (ATB) and selectable lockers, there's a solution for every driver. Whether you need all-terrain versatility or full lock-on-demand control, upgrading your diff ensures your vehicle is ready for any adventure.

choose the right differential for your needs

The Auto Torque Bias Differential (ATB) and the Harrop E Locker manual differential locker. Each is engineered to tackle specific challenges, giving you the power and control you need.

AUTO TORQUE
BIAS DIFFERENTIAL (ATB)

An auto torque bias differential (ATB differential) is a type of limited-slip differential (LSD) that automatically distributes torque (power) between the wheels based on traction conditions. It is designed to improve handling and traction without the need for manual intervention, making it particularly useful for off-road or high-performance vehicles.

HOW IT WORKS

Hi Range 4x4 Driving: On unsealed road conditions, the differential allows the wheels to rotate at different speeds, which is ideal for smooth cornering.

Low-Traction Situations: When one wheel loses traction (like on ice, mud, or gravel), the ATB differential automatically shifts more torque to the wheel with more grip, reducing wheel spin and maintaining momentum.

for those who like to 'set and forget'

Best For:

Drivers who want to focus on the road, not on adjustments.

The ATB is your ideal choice. This differential automatically adjusts the distribution of torque between your wheels, optimising traction as you drive. No driver input is needed—just let the system handle tricky, uneven surfaces like loose gravel, sand, or mud.

Advantages:

• Smooth, automatic engagement.
• Constant traction optimisation for varying terrains.
• No manual input required. 
• Reduces wear and tear on driveline components.

for those who prefer total control

Best For:

Drivers who want direct control over traction in the most demanding environments.

The Harrop E Locker is your go-to for the most extreme conditions. This option allows you to manually lock both wheels on an axle, ensuring they turn at the same rate, regardless of traction. When you need to conquer the toughest obstacles-whether it's deep mud or rocky climbs-this differential delivers unmatched power and control.

Advantages:

• Provides full traction on demand for extreme off-road conditions.
• 100% mechanical engagement- via electrical switch located on the vehicles dash board. Please note 24-12v reducer maybe required in some models of 4x4 truck.
• Ideal for deep mud, rock crawling, or steep inclines.

Whether you need the hands-off convenience or full-on power, ATW gives you the flexibility to build the right vehicle for the job. Let's chat about your specific needs and find the best solution to take your 4x4 truck's off-road capability to the next level.

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