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

John H of NSW
Installed the locker on the wkend bit of work but nothing to complicated. As you well know majority of the time is soaked up in getting it out. Have to put it through its paces when I go to the cape in august. Thanks again for time look forward to doing business with you in the future.

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!).

Tyson G of WA
Jeep Wrangler JK
Well I started the install Friday and had it all buttoned back up for Saturday morning. The install was fairly smooth other than getting the diff centre out. Tested the system out at a local medium to hard trail here Mundaring Powerlines and they exceeded my expectations. My friend who is a mechanic who assisted me with the installation is now considering them for his 2010 Wrangler JK petrol. At the Jeep Club meeting tonight I will be telling everyone about them