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D3 to 3.0 D4 front brake upgrade parts?
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Iceman08
 


Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4
D3 to 3.0 D4 front brake upgrade parts?

I shall soon be carrying out this upgrade and I'm just unsure on a few bits! I have the Brembo discs and 3.0 D4 calipers/carriers already.

Obviously I need D4 pads!

Do I need D4 splash shields, if so do I need the backplate screw for a D4 or a D3 as they have different part numbers?

Do I need D3 or D4 pad wear sensor?

Do I need the M10 x 1.5 or M10 x 2.0 disc retaining screw?

Any help would be appreciated Thumbs Up
   
Post #176383415th Jan 2017 8:45 pm
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Robbie
 


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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

New shields but the brake tell-tale is the same. Not memorised the thread pitch yet.
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Post #176383915th Jan 2017 8:48 pm
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Martin
Site Admin and Owner 


Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18506

United Kingdom 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

As the retaining screw threads into the hub/bearing assembly (which presumably you are keeping) then you should be using the existing screws (or identical replacements).
 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
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Post #176384315th Jan 2017 8:50 pm
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Martin
Site Admin and Owner 


Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18506

United Kingdom 2006 Discovery 3 TDV6 SE Manual Buckingham BlueDiscovery 3

The brake shield screws for D3 and D4 are all listed as M6x10mm.

For the disc retaining screws I think you are mis-reading slightly. They are listed as M10x1.5 pitch for D3 and some D4 (SYP100241), then M10x20mm (length) for other D4s (LR002080).

No length given for D3, no pitch for the D4 part. But given the hub assemblies are not different for D3/D4 of any age then the screws must be the same thread.

Perhaps there are differences with the size of the head. From pics found online the "D3" retaining screw SYP100241 looks like it could have a larger diameter head than "D4" part LR002080 but it may be the angle of the photos.
 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
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Post #176385515th Jan 2017 9:02 pm
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Iceman08
 


Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Thanks both Thumbs Up

I'll get D4 splash shields with new D3 screws, and maybe I'll order two of each for the disc retaining bolts and see which head fits the disc best!

Any idea if I should go for D3 or D4 pad wear sensor?
   
Post #176390015th Jan 2017 10:08 pm
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hugeviking
 


Member Since: 08 Jun 2010
Location: cotswolds
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United Kingdom 2006 Discovery 3 TDV6 S Manual Cairns BlueDiscovery 3

Robbie wrote:
New shields but the brake tell-tale is the same. Not memorised the thread pitch yet.


I take that to mean the wear sensor is the same

Andi.
  
Post #176428516th Jan 2017 6:06 pm
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Iceman08
 


Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Would I be correct in saying the front splash shields I need to fit my 3.0 D4 calipers to my D3 are part numbers LR013666 and LR013665?!

Confused
   
Post #18327762nd Jul 2017 5:06 pm
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Iceman08
 


Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Anyone Question
   
Post #183694114th Jul 2017 9:36 pm
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M3DPO
 


Member Since: 22 Sep 2010
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England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

I used the existing screws, backplate with slight modification and D3 sensor cable:thumbsup:


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Post #183695214th Jul 2017 9:50 pm
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Iceman08
 


Member Since: 22 Sep 2014
Location: Hereford
Posts: 2284

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Thats interesting, I wonder why they say they need to be changed if you can get away without changing them Confused

Thanks for the info, although if I know myself the way I think I do I'll end up ordering new Rolling Eyes
   
Post #183697014th Jul 2017 10:44 pm
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