 | Home > Technical > question re: upgraded Ashcroft HD halfshafts |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17475   
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It would be a good idea to fit Ashcroft HD flanges with the Ashcroft HD shafts. I have this combination and have run them with Boosts, Boosts with 30mm Rakeway spacers, and now Blindos, and they do not cause problems. (I think that there may be some inferior brands of so-called HD flanges which do cause issues wit some alloy wheels).
The HD flanges are higher grade material with better wear resitance to the standard flanges, and are probably manufactured to finer tolerances. The standard shafts and flanges are notorious for wear through fretting, even if lubricated regularly, and are known to fail frequently and generally at inopportune moments. Whilst Ashcroft shafts and flanges will still fret and do need lubricating, they are much stonger and much more forgiving that standard ones. It seems to me to be a false economy to fit shafts and not flanges, especially since failure of the flange is likely to damage the shaft. The Puma driveline is quite fragile, and anything you can do to beef it up is a good thing. |
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9th Jan 2017 3:59pm |
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| big110 Member Since: 02 Nov 2016 Location: Sweeden Posts: 342 
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VERY helpful. I dont really understand the spacers- may send you a PM. BUT really thankful for the reply, exactly what I needed to get educated on this. Seems like Ashcroft is the way to go
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9th Jan 2017 4:17pm |
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| davew Member Since: 02 Jan 2012 Location: North Yorkshire Posts: 888  
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Alloy wheels don't fit over any of the HD flanges, Ashcroft or otherwise. One way to adapt them to fit is to use wheel spacers as they give the necessary clearance around the flange. Obviously you then have the potential issues associated with wheel spacers !
It may be that some alloy designs will fit without spacers, when I tried fitting alloys to mine (someone was borrowing my mud tyres and the intention was for me to put their alloys on my vehicle whilst they were using the mud tyres) there was no way the flange would go far enough through the centre hole in the alloy to allow the wheel to sit properly against the hub. Most alloys though, to compensate for their inherent weakness, tend to fill every available hole with material to try and match the strength of a steel wheel, which is why most 4x4 alloy wheels are actually heavier than the steel ones. http://www.yorkshireoffroadclub.net/ |
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9th Jan 2017 4:51pm |
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| big110 Member Since: 02 Nov 2016 Location: Sweeden Posts: 342
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weird.
Dave Ashcroft wrote to say no prob fitting HD flanges under alloys- no spacers needed. I just dont want to get foooked at the shop and not be able to get my wheels back on... Tell me more about the issues with spacers mate |
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9th Jan 2017 5:06pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17475
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Have a look at this thread where a similar question was asked.
Boosts do fit over Ashcroft HD flanges, Rakeway spacers fit over Ashcroft HD flanges, Boosts fit on spacers over Ashcroft HD flanges, and Blindos fit over Ashcroft HD flanges. I provided photographic evidence to support my assertions! It may well be that other makes of HD flange are different, or other alloy wheels are different.
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9th Jan 2017 5:35pm |
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| yobbie Member Since: 15 Nov 2010 Location: Isle of Wight Posts: 713 
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I'm using Ashcroft HD shafts and CVs with Ashcroft lockers. I have HD flanges and use genuine Boosts and Freestyle alloys without spacers
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21st Jan 2017 11:14am |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8097  
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i have ashcroft shafts and CVs and std drive members and boosts
as an aisde i would use Ashcroft locker over an ARB, they have great engagement on the mech and disengage quicker. Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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21st Jan 2017 5:58pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20487
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Can anyone confirm the bolt length for using the Ashcroft HD flanges?
Standard is 10.9 grade M10 45mm, I presume this is fine unless the flange is a little thicker and requires slightly longer fixings? I'm intending to fit the Ashcroft HD flanges and use boosts with NO spacers on the standard hub so I presume this is fine and have no intentions of changing away from Boosts or fitting spacers. Are the socket head cap bolts still a good idea even without spacers or will standard hex bolts be fine? Perhaps the spring washers with the socket caps maybe better for avoiding threadlock issues though with standard... No Guts, No Glory. 🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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17th Jul 2018 11:29pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8097
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An old thread but it covers the area I am looking at.
I am about to get some 895 Ashcroft hd drive members to fit under std lr boosts, no spacers on a 2007 and 2010 puma. From above it seems that will work. Can anyone confirm the length and thread size for screw caps to suit please. Will fit with nord locs. Was going to go 12.9 on them. Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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18th Jul 2018 6:01am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17475
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The factory bolts are (as custom90steve says) M10 x 45mm Grade 10.9, and the Ashcroft flanges use standard length bolts (note that these are stronger than the "normal" HT bolts supplied by a fastener supplier which will be Grade 8.
I have used hex socket head bolts for years, there is no downside and several upsides (standard SHCs are grade 10.9). I also do not use thread lock but use spring washers, and have never had any problems. Spring washers were used on all Series vehicles and I believe that the change to thread locker was made on the grounds of economy and ease of assembly rather than for any technical reason. The principal reason for not using thread locker (and also for using proper gaskets rather than RTV or similar) is to prevent the problems you can easily have with the bolts shearing off in the hub, which is particularly likely to happen if gunge gets into the holes. It is also important not to overtighten them, if I recall correctly the torque for these is 65Nm /48lbft which isn't particularly tight. |
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18th Jul 2018 7:48am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20487
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Blackwolf - Hate to be a pain but could you find a suitable supplier of the bolts? (And post if at all possible.)
I'm a little sceptical regarding using eBay for such items which I wouldn't be normally. Stainless spring washers should be fine as well I should think. I'm going to at least order the front 859 flanges today, as I can get away with them without any changes to the front shafts or CV's for now. The rear I'm going to need shafts and flanges, quite a cost I could do without! Pity they weren't caught a bit earlier, but HD shafts won't do any harm except the price but still better than the arm, a leg and an eyeball LR charge. At 8k a year approx I do they should last a long time! Thank you. No Guts, No Glory.
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 Last edited by custom90 on 18th Jul 2018 6:39pm. Edited 1 time in total |
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18th Jul 2018 12:31pm |
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| Retroanaconda Member Since: 04 Jan 2012 Location: Scotland Posts: 2661 
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Any hardware/fasteners store will be able to supply socket-cap bolts in M10.
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18th Jul 2018 2:52pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17475
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I bought mine at my local branch of Allfix, but any good fastener supplier will have what you want. The problem you'll find if buying online other than on eBay is that the will usually be a minimum quantity of 100, which may be more than you want to buy. I suggest googling for a local supplier and then giving them a ring.
I don't really see a problem buying on eBay and for small quantities it is usually easier. Choose a supplier who specialises in bolts etc with good feedback and you should be fine. |
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18th Jul 2018 4:00pm |
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| Paul55 Member Since: 03 Feb 2009 Location: Somewhere in my head! Posts: 511 
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Steve, have a look at kayfast1 on eBay, they appear to sell a huge range of nuts, bolts etc in limited qty,s Cogito ergo sum
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18th Jul 2018 4:29pm |
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