LOKKA

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What Does 4WD Action's Shauno Think Of The LOKKA...

What Is The LOKKA?

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 4×4 and 2×4 performance activity.

How Does The LOKKA Work?

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 LOKKA went in easily as you said - about 2 hours with me helping my mechanic brother. And it has made a huge difference! Nice to drive on the road too. Thinking of doing the rear now.”

“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.”

“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 “

“Just purchased a LOKKA from you. Had it delivered to Kingsville in Victoria.Delivery was exceptional. Want to promote your company on my car. Do you have a sticker? Cheers”

“Well the diff lock is fitted (by ACT diff doctor) and took it for a run in July. As you would expect it changes the off-road performance of the Navara dramatically. So much so that my brother suggested he would look into getting one for his Hilux. Anyway very happy with the increase in off-road ability given it's a torsion bar/leaf spring setup, lifts wheels everywhere. However the diff lock in the front axle makes the world of difference.”

“I didn’t get to try it out until yesterday. I did some hill climbs that would have normally made my road tyres slip like buggery but, with the diff lock making sure the front was constantly gripping, the climbs were sure and controlled. I don’t feel any ill effects on the road but a tight turn in a car park going slow and I hear the front clicking albeit very quietly. When in 4x4, I experience more of a ‘return to centre’ type feel in the steering …....The addition of the diff lock has transformed its off road capabilities which could only previously be described as dismal. I am very happy with it. “

“It would have been more work to get out of this bogging without the LOKKA’s. We were in Mt Gambier Forrest. You can clearly see all 4 wheels spinning. This was our 2nd bogging and it was kind of deliberate. Used high lift jack to assist. The LOKKA’s and the new suspension are great. Also note the Nissan recovery truck. Now for those ST tyres ! Put it on you web site if you like. Cheers”

… continued

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 4×4 and 2×4 performance activity.