Thread: ATB Diffs

Automatic Torque Biasing Limited Slip Differential.
Can someone who has them tell me.My Puma has TC which works well but I hate that the wheel which has lost traction needs to spin madly before TC activates and often some momentum is still needed.Would an ATB reduce the initial spinning. I'm looking at E-lockers just so that once activated,it should be easier on the vehicle.

An ATB shouldn't throw you sideways on a side slope. Cheers

Originally Posted by Marty90

Automatic Torque Biasing Limited Slip Differential.

LSD, perfect. thanks

But not your standard LSD like you might have experienced in Toyota or even Nissan... much different animal. Cheers

Originally Posted by twr7cx

That's complete rubbish. They definitely can. ATB's operate all the time - so when driving on the tarmac and hit something slippery (e.g. while going through a roundabout etc), they're there doing there thing and assisting. Your locker is not. You'd probably wind up with issues if you were using it in such high traction settings like tarmac. In such a scenario the ATB has beaten the positive locking diff through practicality.

But my point is not that ATB's are superior. They're not. They're not inferior either though. It's two different options which have different pro's and con's. Depending on your conditions, requirements and desired outcome will depend on which is going to be better for you. For most of us our vehicles do far more on road work than off and the ATB offers it's advantage throughout all this...

There's also a compromise which is a combination of the pair front and rear to get some of the advantages of both...

Oh here we go again around in circles one more time with some contradiction thrown in

Originally Posted by ozscott

But not your standard LSD like you might have experienced in Toyota or even Nissan... much different animal. Cheers

so different to a viscous type??

If you are just comparing lockers and ATBs, it's easiest to view it on a scale of 1 - 10, 1 being the absolute best.

Slow, challenging off-road

1 - Lockers
2 - ATBs with TC
3 - ATBs

Every other situation

1 - ATBs
v
v
v
v
10 - Open diffs

It's a mechanical type...all gear set up and does not use clutch packs like a traditional LSD.

Eaton do one called Trutrak and Ascroft does one called an ATB.

This is one of the best half hours you will spend online.

Differential Locker Comparison (ARB / Eaton / Ox / Yukon) - Filthy Motorsports - YouTube

Cheers