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Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

2013 Defender 110 Puma 2.2 XS DCPU Keswick Green

Two front differentials?

Just when the new ones are loosing theirs...

Click image to enlarge

Tom Ford (@tomwookieford) Tweeted:

Ok car nerds... first, identify why I got a bit obsessed with this. Second, try and figure out how the hell it would work! 🤔

#nichetweet #engineering #landrover https://t.co/u6cyJTGIrb https://twitter.com/tomwookieford/status/1339136140331413504?s=20

16th Dec 2020 3:32pm

Bluest

Member Since: 23 Apr 2016
Location: Lancashire
Posts: 3997

2007 Defender 110 Puma 2.4 XS CSW Java Black

I've seen that car, it's JLR's classic collection at their Classic Works place. I had it explained what it was, but can't remember. I want to say it was for the military with an electric motor driving second diff, but could be wrong. 2007 110 TDCi Station Wagon XS

16th Dec 2020 3:40pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3208

2012 Defender 90 Puma 2.2 CSW Santorini Black

That is what I thought.. a very early hybrid.. probably has a 'silent mode' button. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

16th Dec 2020 4:25pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11240

2013 Defender 110 Puma 2.2 USW Orkney Grey

Twin rear diffs, too and a very busy engine bay, by the looks of it. As above, I'd also think early hybrid drive. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

16th Dec 2020 5:30pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 16876

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I think it might be Landrover's attempt to create a perpetual motion machine, in which the front axle drives the rear axle which drives the front axle which drives ...

... well, you get the idea.

I imagine that they rapidly realised the flaw with this, and that is why we don't all have them.

16th Dec 2020 5:42pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3208

At the same time it also looks very similar to the Tatra 4x4 system with dual crown and pinion setup per axle. Diff is further up the transmission tube.
If you look at the Defender pic, the way the diff pans are welded suggest that the pinions would rotate in opposite direction.

Take a look at the Tatra setup: 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

16th Dec 2020 5:55pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11240

I just came across a slightly better picture of this vehicle on Instagram and it turns out to be a NAS 90 with full roll cage. It is a prototype petrol electric hybrid.

Click image to enlarge Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

16th Dec 2020 8:51pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 7686

2011 Defender 110 Puma 2.4 USW Stornoway Grey

Disco 2 outer axle case? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop

16th Dec 2020 10:36pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11240

Yeah, either that or P38, depending when it was built I guess. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

17th Dec 2020 7:35am

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