Mr Andrew
Member Since: 28 May 2007
Location: Sydney, Australia
Posts: 128
  
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| Rear differential replacement - pinion bearing |
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I complained to my dealer about bearing noise somewhere. They diagnosed it with some sort of electronic stethescope, and said the rear pinion bearing is shot, and they will replace the rear differential to fix the problem, which will take 2 days in the workshop to fix.
I am interested in advice:
a) is pinion bearing failure a common thing, or I'm just unlucky? (car's done 73,000km); and
b) does it make sense that they're changing the entire differential? Not that I am complaining, but wouldn't you just replace the 2? pinion bearings?
Here's some interesting imagines of the offending part: http://www.cutawaycreations.com/cutaways.p...fferential
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 8th Nov 2008 12:06 pm |
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Adiver
Member Since: 18 Jan 2006
Location: Rutland
Posts: 492
  
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I think you will find that the noise is due to about half the dif casing being missing.  D4 SDV6 HSE
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| 8th Nov 2008 2:12 pm |
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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If I had any part breaking up in the diff, it'd be best to swap it all out complete. Besides, LR will probably only pay for a complete unit swap rather than the labour required to break it all down and put it back together component by component. Bodsys Brake Bible
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| 8th Nov 2008 2:14 pm |
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heine
Member Since: 07 Feb 2007
Location: Midrand
Posts: 4054
 
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| Re: Rear differential replacement - pinion bearing |
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Mr Andrew wrote:b) does it make sense that they're changing the entire differential?
Bit scary that if it is the case 
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| 8th Nov 2008 2:16 pm |
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Mr Andrew
Member Since: 28 May 2007
Location: Sydney, Australia
Posts: 128
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Thanks Bodsy, I have suspected that from LR's perspective its more economical to replace, rather than dissasemble/reassemble. So does that mean the whole diff unit, like the object shown in the linked picture?
Also, I have been told that all warranty replacement parts have to go back to the factory for inspection. I wonder what happens to all of the pieces that are not damaged (eg, the housing etc). For somebody with (say) a cracked housing, it would be a valuable spare.
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| 9th Nov 2008 4:29 am |
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heine
Member Since: 07 Feb 2007
Location: Midrand
Posts: 4054
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Here is SA LR have started offering reconned parts . Maybe they source them from warranty claims ?
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| 9th Nov 2008 9:05 am |
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