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Help - mixing old and new tyres

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D3Savage

Member Since: 30 May 2014
Location: Lancashire
Posts: 100

2015 Discovery 4 3.0 SDV6 SE Tech Auto Montalcino Red

Help - mixing old and new tyres

Hi had a puncture resulting in me putting the spare on the front together with the new tyre....so have 2 new tyres on the front - these have 8mm tread. The rear tyres have 5mm of tread.

Is this ok or am i going to stress the drive train???

Phoned LR agent at Bury .... they thought it was ok.....

any thoughts.../ advice... MY 2015 Se tec SDV6 auto
Extras added:
Electronic diff
Meridian 17 speaker audio
Cool cubby box
Full size spare
Tow bar
Surround Cameras
Black rear tints
Cosmic grey interior panels

29th Jul 2016 11:40 am

DSL
Keeper of the wheelie bin

Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72870

Best tyres are best to be on the back, otherwise I wouldn't worry about it.

29th Jul 2016 11:46 am

James3LDR

Member Since: 28 Jun 2016
Location: Bath
Posts: 30

2012 Discovery 4 3.0 SDV6 HSE Auto Santorini Black

I am also interested in thoughts on this as I'm in a similar situation, I've just put two new on the front due to a osf puncture, however only around 5mm of tread on both rears.

29th Jul 2016 11:46 am

JackNorris

Member Since: 06 Jul 2012
Location: Beds/Bucks Border
Posts: 1877

2005 Discovery 3 4.4 V8 HSE Auto Tonga Green

I had two new fitted yesterday on front and rears have around 5mm, ill keep an eye on this thread! MY2023 Discovery 5 R-Dynamic 3.0
MY2020 Discovery 5 Landmark 3.0 - SOLD
MY2005 Discovery 3 V8 4.4 HSE - SOLD
MY2019 Discovery 5 SE 3.0 - LR Replaced !
MY2005 Discovery 3 S 2.7 - SOLD
MY2016 Discovery 4 Graphite - SOLD
MY2015 Discovery 4 SE Tech - SOLD

29th Jul 2016 11:51 am

DSL
Keeper of the wheelie bin

Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72870

ISTR new ones are best to be on the back to help stop the rear end stepping out.

Discussion here, http://www.disco3.co.uk/forum/topic145925.html?highlight=

29th Jul 2016 11:53 am

M3DPO

Member Since: 22 Sep 2010
Location: Notts.
Posts: 8144

2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris Grey

It will not effect the transmission either way as long as they have the recommended pressure in them, it is only applicable to vehicles with part time 4 wheel drive that have a viscous centre differential and do not have a proper centre diff.
Vehicles with part time 4 wheel drive are predominantly front wheel drive and the least worn tyres must be fitted in the front, fitting worn tyres on the front may trick the system into thinking the front wheels are slipping and thus "switch" the 4 wheel drive on prematurely and cause unnecessary wear. It can when others can't,
It will when others won't,
It goes where others don't.

29th Jul 2016 12:28 pm

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