 | Home > Maintenance & Modifications > Snapped rear one piece half shaft. |
 
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3616   
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Blimey! I know people say it is a risk going one piece, but I didn’t believe it until now!
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31st Dec 2018 6:10pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7687 
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Tc or a locker fitted? Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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31st Dec 2018 6:21pm |
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| gazman Member Since: 17 Aug 2015 Location: Liverpool Posts: 652 
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Neither. 33" tyres that slipped on a rock and bounced. I think the spin and then the sudden grip caused it to go 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r |
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31st Dec 2018 7:17pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7687
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Unlucky, but the 33s put quite a large turning moment on the shaft compared to std, one of the risks of uprising I guess. Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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31st Dec 2018 7:56pm |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2079 
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I've never heard going one-piece half shaft described as a risk 😂
On the other hand a big spinning wheel that stops suddenly will always shock something, usually the half shaft. If you've never broken a half-shaft you haven't been trying hard enough 😉👍 Mo The Land Rover 90 - Many are called, few are chosen. |
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31st Dec 2018 8:20pm |
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| Jontd5 Member Since: 09 Dec 2018 Location: Laois Posts: 39 
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Was out yesterday with D2 and had a similar / worse experience - fun decent from hills and drive home😎
 Click image to enlarge |
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31st Dec 2018 8:29pm |
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| miker Member Since: 13 Sep 2015 Location: Surrey Posts: 1758 
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Ahh, the rare "transparent diff cover" upgrade
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31st Dec 2018 9:01pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16879 
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Care to explain this odd sentiment? Why is one-piece riskier that two-piece? When it breaks it is just as broken!
That's a very popular and common method to break halfshafts! |
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31st Dec 2018 11:45pm |
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| Oldowner Member Since: 26 Dec 2018 Location: South west Posts: 602 
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It’s said to be a risk as the late td5/ Puma shaft is constant diameter all the way down the shaft, whereas the 300tdi shafts are waisted. I’d still rather the 300tdi shafts and zero backlash/ stripped rear drive members though.
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1st Jan 2019 8:32am |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3616
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[quote="blackwolf"]
Care to explain this odd sentiment? Why is one-piece riskier that two-piece? When it breaks it is just as broken The two piece shafts wear at the drive member splines and are pretty simple to fix. If the single piece shaft snaps it can mean splitting the diff from the axle to get it out if Lady Luck isn’t on your side. |
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1st Jan 2019 10:35am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2079
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Er, you can still snap a 2 piece half shaft !
Mo The Land Rover 90 - Many are called, few are chosen. |
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1st Jan 2019 11:54am |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3616
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Yes, of course it is possible. However The vast majority of issues with the two piece shaft is people reporting spline wear on/at the drive member, not the shaft snapping.
Have a search on the forum for one piece half shafts and read up on the general consensus. From my perspective, the jury is out and I still consider fitting the one piece units the next time the drive member splines are worn. This is the first time I’ve actually seen one snap, hence the surprise. Happy new year to you. |
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1st Jan 2019 12:01pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16879
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A broken one-piece shaft is no harder and no easier to remove than a broken two-piece!
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1st Jan 2019 2:05pm |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2079
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Co1,
Forgive me but you cannot compare wear in one with shock induced breakage in another 
2 piece irritatingly wear at the drive flange splines, single piece do not. Both types will snap if overloaded. 10 spline will break more easily than 24 spline. Quite often if the shaft breaks at the diff, the broken stub can be removed without diff removal with the use of an appropriate magnetic removal tool such as that produced by X-Eng, dependant of course on the amount of twist prior to breakage and spline condition. I have plenty of my own practical experience of shaft breakage over the years and really don't feel the need to explore the consensus of other armchair experts 
I take a one piece half shaft over a two piece any day. HTH Mo The Land Rover 90 - Many are called, few are chosen. |
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1st Jan 2019 4:16pm |
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