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nitram17

Member Since: 08 Jun 2014
Location: newcastle
Posts: 2261

Thanks for the well thought out replies... iits a conundrum! trust land rover! I suppose since i doubt there is anybody one here that has replaced a failed shaft with a lof shaft and done 60 thousand miles yet i guess i will go with the ashcroft solution.ps just a thought ....has anybody thought it could be a combination of no lubrication overheating and differences in the quality of each input shaft manufacture.....it is unusual that they appear to wear at the same point on the shaft and the female housing splines don't appear to be affected. Could it really be down to lr quality control on shaft manufacture?

Last edited by nitram17 on 7th Feb 2021 8:10pm. Edited 1 time in total

7th Feb 2021 7:56pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3424

2012 Defender 90 Puma 2.2 CSW Santorini Black

I concur with what Blackwolf said above.
The fact that some shafts managed to jump off the snap ring that should hold the male with the female splines fully engaged suggest to me that quite some movement is occurring within the coupling. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

7th Feb 2021 7:56pm

nitram17

Member Since: 08 Jun 2014
Location: newcastle
Posts: 2261

Isnt that just a chicken and egg conundrum?

7th Feb 2021 8:13pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8051

2011 Defender 110 Puma 2.4 USW Stornoway Grey

Have you tried diff lock as above? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

7th Feb 2021 10:02pm

DSC-off

Member Since: 16 Oct 2014
Location: North East
Posts: 1428

2015 Defender 110 Puma 2.2 XS CSW Aintree Green

nitram17 wrote:
...has anybody thought it could be... differences in the quality of each input shaft manufacture.....it is unusual that they appear to wear at the same point on the shaft and the female housing splines don't appear to be affected. Could it really be down to lr quality control on shaft manufacture?

It has been established from the forum survey that some vehicles show a repeated pattern of failure at the same or similar milage. Sometimes 3 or 4 shafts have all failed in the same vehicle, all between (say) 20,000 and 25,000 miles, over an 8 year period.
This suggests that shafts are of a consistent quality for material, machining and heat treatment.

Other vehicles have shown a repeated failure at 30,000 miles or 40,000 miles.
This would lead me to believe there is something else peculiar to the vehicle that is causing the failure, not a random variation in the 'quality' of the shaft itself.

7th Feb 2021 10:28pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17444

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Indeed, I suspect that it is the quality of machining and the tolerances on the extension housing.

7th Feb 2021 10:59pm

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