Proof of Active Locking Rear Differential

**ChawtonD3** · 30th June 2008, 08:26 PM

Yep, if you have a front locker you seriously compromise steering on slippery surfaces and add a lot of stress to front drive shafts, particularly to CVJ's. With a rear and a centre locker the traction control on the D3 still operates across the front wheels but at the same time you get to keep pretty good steering, especially in deep sand or mud(Turn of DSC). The compromise would only be on steep hard surfaces that some HP would be lost to the brake action of traction control.

If you put your D3 in the position of the video example it only stay like that at idle, as soon as you add any significant throttle the traction control activates and starts braking the airborne wheel to drive the grounded one.

**Desert Traveller** · 5th July 2008, 05:42 PM

A number of Mags did some comparisions between a fully locked Patrol and a D3 with the eDiff. The D3 killed the fulled locked Patrol in ability to get up slippery slopes. As previously noted the front diff lock compromises steering and cvs.

**Kobe** · 15th March 2016, 01:51 PM

Hi Thinking of buying a Disco 3 V8 HSE. Can any body tell me if this was standard on the HSE or an optional extra??

**rocmic** · 17th March 2016, 12:00 PM

Sorry to say it was an option on all models. But don't panic about it, they are damn good even if they don't have the ediff.
Cheers
Mike

**Grentarc** · 18th March 2016, 07:06 PM

Originally Posted by Kobe

Hi Thinking of buying a Disco 3 V8 HSE. Can any body tell me if this was standard on the HSE or an optional extra??

I think the only vehicles with it standard is the supercharged RRS and RRV

**rar110** · 19th March 2016, 02:12 PM

Originally Posted by Wilco

Gordon you are a genius. I have viewed the images on cutaway creations and a few minutes ago I poked a torch under the back wheel arch and spied a solenoid sitting on top of my back diff!

Wilco,
You are pretty fortunate. Do you have terrain response? It's just that D3S with an electronic rear diff lock and without TR would have been quite unique. Maybe it activates when traction control detects slippage.

**winaje** · 21st March 2016, 12:26 PM

Originally Posted by Kobe

Hi Thinking of buying a Disco 3 V8 HSE. Can any body tell me if this was standard on the HSE or an optional extra??

PM me the VIN and I'll run it through TOPIX and check for you.

**Nicky** · 21st March 2016, 04:23 PM

Originally Posted by rar110

Wilco,
You are pretty fortunate. Do you have terrain response? It's just that D3S with an electronic rear diff lock and without TR would have been quite unique. Maybe it activates when traction control detects slippage.

So unique that this set-up could not exist. The e-diff depends on TR for input.

**rar110** · 21st March 2016, 05:53 PM

Originally Posted by Nicky

So unique that this set-up could not exist. The e-diff depends on TR for input.

That's what I thought, but it's an S which didn't get TR or EAS (unless MY09 or a special order), like the SE.

Even if an MY09 it would still be a special order and unusual for the lower spec S D3, when they were running out the D3 in anticipation of the D4.

**gghaggis** · 21st March 2016, 06:14 PM

There were quite a few D3 S models optioned with TR and EAS, from 2005 on. No reason why they couldn't have an eLocker as well.

Cheers

Gordon

Thread: Proof of Active Locking Rear Differential

Thread Tools

Disco 3 V8 rear diff lock

Bookmarks

Bookmarks

Posting Permissions