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LOKKA Differential Locker

Lokka Differential Locker

LOKKA is an automatic differential locker that is invaluable for Off-Roading. Whether fitted to front, rear or both differentials, Traction Performance is significantly improved in all realms of 4x4 and 2x4 performance activity.

LOKKA Differential Products

LOKKA is a fully automatic Differential Lock that does not require manual operation. It doesn’t have switches, external lines, electric or pneumatic controls of any sort. It relies on a simple mechanical design which makes use of two distinct sets of forces - the "ground driven" forces acting on a wheel when cornering (that force an outside wheel to turn faster) and the forces from the engine (power) turning the differential and axles.

The combination of these two sets of opposing forces and the LOKKA design allow the automatic engagement and disengagement of the driving gears when a vehicle turns or

requires differential action.

Wheel slippage or a loss of traction can occur for many reasons off-road and include excess throttle, fast approach speeds, limitations in wheel travel (especially independent front suspension vehicles), weight transfer off drive wheels & slippery surfaces such as mud, sand, snow, shale, wet grass etc.

In many of these circumstances both the normal standard differential and LSD center will allow the wheels with the least resistance to spin. Thus the wheels with traction do not obtain any real drive and the vehicle will lose speed or stop. LSD centers might assist under these circumstances but only if they are in good condition and only if there is enough resistance on the spinning wheels to activate the clutch pack or gears to force drive to the wheels with traction. Even a new LSD will allow a lifted wheel to spin freely with no drive to the wheel with traction.

LOKKA overcomes the traction deficiency of the standard differential and LSD center to ensure that a 50:50 power split is achieved when driving, irrespective of ground (or air!) conditions, yet at the same time still allowing differential action when cornering on hard ground.

Whether fitted to front or rear or both differentials, Traction Performance is significantly improved in all situations.

LOKKA enjoys an excellent reputation for reliability throughout the world – sold in every continent, in all realms of 4x4 and 2x4 performance activity.

LOKKA's operation & effectiveness comparison to other differentials summary:
3 Year Unconditional Warranty in Australia
Smooth automatic operation
Extremely sensitive unlocking (finger touch)
Wide range of models available
Dependable performance characteristics
Positive locking for 100% traction
Unmatched reliability due to simple design
Doubles your 4WD's offroad abilities
Ultra resilient, steel alloys for durability
Simple installation – Do it yourself fit



LOKKA Differential Locker


LOKKA Differential Locker
Lokka Typical Components Assembly Relationship Axle gear, Spacer, Cam Gear

LOKKA Differential Locker
Lokka Typical Components Assembly Relationship Axle gear, Spacer, Cam Gear

LOKKA Differential Locker
Lokka Typical Components

Recommendations

Rod B of WA
Toyota LCR HZJ105 1999

Oh, and by the way, I bought from 4wdsystems your Lokka diff locks for the front of my Hilux some two years ago and they have made a world of difference to the offroad performance of my vehicle. I now have no fear of tackling any 4wd obstacle, knowing I can easily get through (well, more often than not). The downside is I spend most of my time towing my mates out of trouble who cant get through!


Werner L of NSW
Hyundai Terrecan

LOKKA went in 2 weeks ago and I could give it a real test last weekend: it is just great! Beside the fact that it takes some time and hands to get the stock diff out to retrofit the LOKKA parts it is excellent value for the money.

The other guy for the second LOKKA I ordered is also more than happy! Thanks so far for the good service and the good products and again, I'm very happy with the LOKKA......


Jonathan M of QLD
Mitsubishi Challenger PA 2003
Had the Lokka installed professionally. …... as for the Lokka! AMAZING!

Deliberately put the car across a ditch so the wheels were lifted diagonally (front right off the ground and rear left off the ground). It just pulled through like nothing was happening! Not an ounce of wheel slip. I've done that ditch before and the only way I could get through was to load up the Torsen rear diff with the handbrake and give it some power. It really is amazing. I'm heading off for Cape York in less than 2 weeks, so that'll be a good test for it (and me!).