L66TEY Posted October 7, 2021 Author Share Posted October 7, 2021 Progress made, with the passenger side driveshaft now removed (with ease). On the basis of the Quaife ATB Diff being "fit and forget" I'm inclined not to remove it - adopting a "if it ain't broke, don't fix it" approach. Chris Link to comment Share on other sites More sharing options...
L66TEY Posted October 10, 2021 Author Share Posted October 10, 2021 Driver side Driveshaft finally removed However, it's become clear why it was a struggle to remove. Does this mean a new Driveshaft and/or Diff Rebuild?? I hope I'm not kidding myself but I'd like to think it's simply been caused by some crud getting stuck between the driveshaft and Diff Housing. As always, all feedback/input appreciated?? Link to comment Share on other sites More sharing options...
David_Long Posted October 11, 2021 Share Posted October 11, 2021 That looks a bush failure on the ATB unit I'm afraid. The shaft may clean up but I would recommend that the ATB unit is removed and checked. Cause? My money would be on prolonged donuts leading to lubrication failure on that side. Link to comment Share on other sites More sharing options...
L66TEY Posted October 11, 2021 Author Share Posted October 11, 2021 Thank you David,Whilst not great news, appreciate your help on this. Just spoke to Quaife and understandably their Lifetime Warranty doesn't cover the bushes in the Ford Housing. Sounds like I'll need to remove the Diff after all and get this sorted. Chris PS Hand on heart, Im not guilty of the suggested "donut" cause :O Link to comment Share on other sites More sharing options...
David_Long Posted October 11, 2021 Share Posted October 11, 2021 You may be able to get an idea of the condition by comparing the two sides with a finger. The bush that i think has failed will have grooves in a helical pattern. If the grooves have been worn away then it will need attention. Link to comment Share on other sites More sharing options...
L66TEY Posted October 11, 2021 Author Share Posted October 11, 2021 Hi David, As per your suggestion I checked for the grooves and Im pleased to confirm they are intact, albeit the bush is a little pitted. Based on this pic - what are your thoughts? Chris Link to comment Share on other sites More sharing options...
OldAndrewE Posted October 11, 2021 Share Posted October 11, 2021 I would say the bush needs renewing. It looks like either lack of lubrication or some debris has found its way into the bush. Also the surface where the seal runs looks damaged (or is this just how it looks on the photo), that needs to be sound or the seal will not last. You may be lucky that the shaft cleans up but it needs to be as good as the other one, to me it looks quite scored Link to comment Share on other sites More sharing options...
David_Long Posted October 11, 2021 Share Posted October 11, 2021 It's good to see they are still quite deep, so probably not too much wear. The finish is poor but would probably recover if the drive shaft can be cleaned up. I would try some Autosol metal polish on the drive shaft and, if it cleans up to the original machine finish, I would put it back together and forget about it.Re above - it is part of the case of the ATB unit so cannot be replaced. You would need to replace the complete unit - so you have nothing to lose by putting it back together. It is not the bearing so does not support the shaft - it just allows the differential action Link to comment Share on other sites More sharing options...
Wrightpayne Posted October 12, 2021 Share Posted October 12, 2021 I think the fretting on the drive shaft might need a bit more than autosol. If it were mine I'd use a strip of very fine emery cloth with oil.I'd also change the diff oil - I've done this on my diff (same set up) with a machinemart oil syringe and the boot floot out. The plastic tube went in the filler hole, hit the ATB and went down to the bottom of the diff. Or you could unbolt it and upend it! I use OEM ford oil in mine (as used in the Ranger) Ian Link to comment Share on other sites More sharing options...
L66TEY Posted October 12, 2021 Author Share Posted October 12, 2021 Thank you David and Ian,Having removed the metal filings from the scored area with a magnet, I'm definitely going to change the Diff Oil - as expect there could be more inside. Now need to decide on syringe or Diff removal approach.....Chris Link to comment Share on other sites More sharing options...
L66TEY Posted October 12, 2021 Author Share Posted October 12, 2021 Link to comment Share on other sites More sharing options...
Wrightpayne Posted October 13, 2021 Share Posted October 13, 2021 I'd be inclined to take it out and upend it. You've done most of the hard work of removal - just the 4 lots of spacer washers to catch or find when they ping across the garage floor :-)Being a bit OCD, I'd probably buy some new and cheap gear oil and part fill it on the bench, use a driveshaft to turn the internals to try and flush out any more bits. Couple of 1/2 litre fills and empty shouldn't do any harm. Looking on internet basic gear oil is about 7 quid a litre. Ian Link to comment Share on other sites More sharing options...
David_Long Posted October 13, 2021 Share Posted October 13, 2021 That does look like there's more involved than just the alloy bush. So minimum I would remove the back cover and see if there any other obvious problems. Ideally it's off to Road and Race with it. Link to comment Share on other sites More sharing options...
L66TEY Posted February 24, 2022 Author Share Posted February 24, 2022 Thought I might as well reignite this thread to provide an update. After some deliberating In the end I decided to take the Diff out, and it is presently with R&R. But it unfortunately appears that Quaife don't presently have stock of the required part. Additionally, having read the numerous posts on "LSD" and considering my liking of track days - Im leaning towards swapping the ATB out for a TracSport (though need to find some funds). If I do, I'll be selling a rebuilt ATB Diff, hence please let me know if this is of interest? Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted February 24, 2022 Area Representative Share Posted February 24, 2022 #39 - To save costs just have the SP Components Tracsport 'Ultra' Sierra 7" limited slip unit fitted ? Steve will overhaul the diff casing & set it up perfectly.If there is a shortage of parts for the Quaife get it up to Redditch before there are not !!Limited Slip Differentials | Astwood Bank | Tracsport page 2 Link to comment Share on other sites More sharing options...
L66TEY Posted February 24, 2022 Author Share Posted February 24, 2022 #40 Hi Geoff,Your timing is impeccable, I've literally just put the phone down from checking stock with Steve :D In regards to Quaife - this may deserve a fresh thread - but as it stands I've been advised that Quaife are no longer willing to supply single parts to repair their own products - they are only interested in selling complete Diffs! Next phone call to be made is to Quaife........ Link to comment Share on other sites More sharing options...
L66TEY Posted February 24, 2022 Author Share Posted February 24, 2022 ......so after having resorted to what felt like a quite "strong persuasion" approach, Quaife have advised they are able to repair the ATB themselves, but will not supply the required parts for a third party to fit. Link to comment Share on other sites More sharing options...
Tazio Posted February 24, 2022 Share Posted February 24, 2022 Thought ATBs have a lifetime warranty? Link to comment Share on other sites More sharing options...
L66TEY Posted February 24, 2022 Author Share Posted February 24, 2022 #43So did I, but their get out of jail card is that the warranty only applies to the first owner Am now of the mindset to get it fixed and sell it, as ATBs are great for road use - whereas I need a more track focused Diff. So if anyone knows of someone looking to buy a Quaife ATB Diff for a Ford Housing - please send them my way. With thanksChris Link to comment Share on other sites More sharing options...
Youds7 Posted February 25, 2022 Share Posted February 25, 2022 Chris, what ratio is it? Link to comment Share on other sites More sharing options...
L66TEY Posted February 25, 2022 Author Share Posted February 25, 2022 #45Good point, the housing is stamped with "362". Link to comment Share on other sites More sharing options...
L66TEY Posted February 25, 2022 Author Share Posted February 25, 2022 Further more - the Diff is coming out of a R300 (Duratec) Link to comment Share on other sites More sharing options...
Area Representative Geoff Brown Posted February 25, 2022 Area Representative Share Posted February 25, 2022 Get that SPC Tracsport LS unit fitted ASAP !! Link to comment Share on other sites More sharing options...
ChrisC Posted February 25, 2022 Share Posted February 25, 2022 I remember that being a pain of a job, one of those jobs that just added unnecessary randomness as to how hard it would be. But then my dad purchased the official special tool (it might have been a copy), it provided a leaver with a massive area to hit with a hammer, that pivoted on a drive shaft seal casing bolt. It was a 5 second job each side after that. Are the good old days :) Link to comment Share on other sites More sharing options...
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