LOKKA Differential Locker

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 and slippery surfaces such as mud, sand, snow, shale, wet grass etc.

In many of these circumstances both the normal standard differential and LSD centre 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 centres 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 centre 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.



Australian Warranty Statement

A 3 Year Unconditional Warranty is provided for LOKKA products.
Free Wheel Hubs in Part Time Conversion Kits have 1 Year Warranty




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

PDF Downloads

Australian 4WD Action LOKKA feature article
Installation 4 Pinion
Installation 2 Pinion
Toyota LSD Replacement

Recommendations

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!).

Todd M
Since I fitted my Lokka my courier has been transformed from a rabbit jumping around everywhere to a caterpillar in control and appears to be able to tackle any sort of terrain I can throw at it ,having said that if I had a crystal ball I would have installed a Lokka a front diff , a few dents and a lot of crash bashing ago , thanks to your team. Cheers

Eric G of Singapore
Toyota LCR Bundera RJ77

I have just install the Lokka to the front of my LandCruiser... Its works and I love it. I manager to climb a steep obstacle now. Thank you..