LOKKA Differential Locker

Well What Is It?

LOKKA is an automatic positive locking differential; a novel approach to traction technology that delivers maximum drive while still allowing normal differential operation. Whether you’re driving on bitumen, powering through deep mud, tackling soft sand or climbing rocky slopes, LOKKA performs smoothly, quietly and reliably.

This ingenious design is extremely rugged yet surprisingly simple. Instead of relying on complex clutch packs or electronics, LOKKA replaces the planetary gears inside the differential with a set of cam and axle gears. The result is an affordable, mechanical locker that provides 100% drive to both wheels when you need it most.

Performance and Durability

LOKKA is built to handle some of the harshest conditions faced by commercial and recreational 4WDs. Its strength lies in the precision-engineered cam and axle gear sets, manufactured from high-strength, heat-treated steel alloys. The mechanism is designed for failsafe operation and provides unmatched reliability thanks to its minimal number of moving parts.

Unlike clutch-based LSDs, which wear over time, LOKKA’s performance is consistent throughout its lifespan. Its sensitive design ensures smooth engagement and unlocking, with no harsh clunks or jolts. The result is exceptional traction, long-term durability and dependable operation under all conditions.

Installation Made Simple

In most cases, LOKKA can be installed at home by anyone with basic mechanical skills. No special tools, calibration equipment or diff specialists are needed, as the crown wheel and pinion remain untouched. With nothing more than an installation manual and a standard tool kit, fitting can be done in as little as one to four hours.

This simplicity, combined with LOKKA’s robust design, makes it one of the most cost-effective traction upgrades available for 4WDs worldwide.

How LOKKA Works

LOKKA is normally in a locked state, driving both wheels equally. Differential action occurs only when external forces cause one wheel to rotate faster than the other, such as during cornering. The low-profile cam gears allow the faster-turning wheel to unlock smoothly, while torque continues to drive the inside wheel. Once the vehicle straightens, the unit instantly re-engages without harshness.

This smooth operation is possible because of LOKKA’s ramped gear teeth, which provide gentle engagement with almost no backlash. Compared with other lockers that can be noisy or jerky, LOKKA remains quiet, precise and easy to steer.

Benefits on and off the road

LOKKA transforms the offroad performance of your vehicle. Unlike open or LSD differentials, which send drive to the wheel with the least traction, LOKKA always drives both wheels under load. This means improved traction in mud, sand, snow, shale, wet grass or rocky climbs. Even if one wheel is lifted completely off the ground, drive is still delivered to the wheel with grip.

The improved control allows slower, more deliberate approach speeds, reducing wheel spin, tyre wear and track damage. Engine braking is enhanced on descents, and confidence is increased when tackling obstacles that would normally require speed or momentum.

On-road, LOKKA behaves like a standard differential, with sensitive unlocking that allows normal cornering without heavy steering or excessive tyre chirp. Unlike many manual lockers, LOKKA doesn’t force the vehicle into a straight line or fight against the steering.

A Smarter Choice for 4WD Drivers

LOKKA eliminates drivetrain stress, prevents one-wheel spin-up and avoids the axle shear common with other lockers. It has been proven in everything from everyday 4WDs to high-horsepower V8 conversions, campers and commercial rigs.

Affordable, reliable and easy to install, LOKKA offers the benefits of a full mechanical locker without the cost or complexity of air, cable or electronic systems. Its revolutionary design and smooth performance make it one of the most effective traction aids on the market – and once fitted, you’ll wonder how you ever drove without it.