Quaife ATB differential

Lambert wrote: Except that off road with a wheel in the air you have the opportunity to apply a little bit of hand brake or left foot brake to give resistance to the spinning wheel and essentially trick the atb into sending drive where you have grip. It takes a degree of skill and understanding to master but in essence its the same operation as terrain response in a modern semi locking land rover but without the computers.

In the case of the Gen.4 the automated 'BLSD' or torque biasing brake system will do this for you. Making the addition of a Torsen LSD an absolute weapon.

A quick bit of googling and I ended up here <eBay Link>

HTH

The Gypsy rear axle has 6.9" Gear with 26 splines. Is that the only spec I need to look at for compatibility or do I need to look at other things? When I spoke about this to a local garage I was told I need to look at other things like like count of teeth in the ring gear or mounting pattern - but I am not convinced on that. I am not an engineer and I have just starting reading a textbook on Drivetrains gear ratios and transfer cases etc., hopefully by this weekend I will have all the key terms understood and memorized to be able to name all the parts in the drivetrain and their function.

But in the meantime I would like to keep some conversation going and take your help along the way on this topic, and trigger some new findings and learnings.

Edit: it looks like 10 vs 12 nuts/bolts are also important to consider?
Thanks

GObble - In answer to your PM, there was only basic advice about ensuring the backlash was set to factory limits. No real fitting instructions as it were....

In your position, I would contact Quaife directly with the factory spec's of your axle and ask the question about suitability, directly. They are a helpful bunch and happy to talk to those with little technical knowledge (me....) and lead you by the hand....

A normal transmission shop fitted my diff with four hours labour.

They are a cracking piece of kit and really do transform the chassis dynamic of any car they are fitted to, on a road biased car they will provide the best performance of any differential, in my opinion.

I am yet to find a situation whilst driving off road where it has let me down either....

sniper

I fitted an Eaton (now Detroit) Trutrac helical gear style LSD to the back axle of a Landcruiser and can vouch for there effectiveness both on and off a sealed surface. In my opinion they are far better than a locking diff. that requires driver input.

Roger

Thank you for the replies. I just got a reply from Jimnybits a few mins back telling the same thing.

Another thing - Do you think the factory axle shaft is strong enough to handle the 80% torque bias on one side alone? I guess its not going to load the axle like a fully locking diff but still.. my car has done 80k Kms and some things are going to be worn out a bit.

I am thinking I will get some of those chromoly off-road axle shafts from the U.S. There is even a 26 spline conversion for the front - which got me thinking - what will be the impact of putting the ATB LSD on both front and rear? Is there a risk of over/under steer on high-speed turns or any unpredictable change in handling and steering behavior if put it in the front?

FYI these are the Gear Axle ratios for my MG413W:
Gearing:

---

1st 3.652
2nd 1.947
3rd 1.423
4th 1.000
5th 0.795
Reverse 3.466

TC-High: 1.409
TC-Low: 2.268

Axle: 3.73:1

---

Am I correct that only the Axle ratios matter and rest is irrelevant and will not affect anything - even if say the Jimny U.K variant this product was tested on had slightly different gear ratios? I believe the Axle ratios are the same for both so its all good ..?

PS: Yes the Eaton was my original wishful choice because it was not available for the 26 spline Suzukis. I read a lot about it still as I dreamt ... Then I chanced upon this thread and discovered the Quaife ATB product.