dazzer Posted June 22, 2016 Share Posted June 22, 2016 What grade of steel were Triumph differential output shafts made of?Is there a grade that would have better resistance to shearing? Dazzer Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted June 22, 2016 Share Posted June 22, 2016 Quoted from dazzer What grade of steel were Triumph differential output shafts made of?Is there a grade that would have better resistance to shearing? Dazzer Which shaft? The Diff output stub shaft or the half shaft? Quote Link to comment Share on other sites More sharing options...
dazzer Posted June 22, 2016 Author Share Posted June 22, 2016 HiThe diff output stub shaft.Two snapped in the last couple of years. Not the end of the world but if an improvement could be made I'm up for having some made.Cheersdarren Quote Link to comment Share on other sites More sharing options...
Richard B Posted June 22, 2016 Share Posted June 22, 2016 Ask Chris Witor or James Shackford?Tried some of the TR racing people? If it is available for a racing TR, be prepared to sell a kidney... Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted June 22, 2016 Share Posted June 22, 2016 Sorry, not heard of any stub axle shaft snappingOne would imagine that the material was a standard EN3/43 spec and after hobbing/shaving would be heat treatedNot sure where you would get the actual spec from......anyone? Quote Link to comment Share on other sites More sharing options...
RobPearce Posted June 22, 2016 Share Posted June 22, 2016 You could probably find the spec in a big pile of BL / Austin Rover "heat treatment specifications" that I was given many years ago by a Wombler within Rover. I think I donated it to the club library. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted June 22, 2016 Share Posted June 22, 2016 To my memory West Yorkshire Foundries(that were only 17 miles down the road) were the major suppliers of steel products destined for Standard/BL etc,which in turn became part of BLMaybe they may have an archive around here somewhere....I might just check that out Quote Link to comment Share on other sites More sharing options...
dazzer Posted June 22, 2016 Author Share Posted June 22, 2016 Thanks guysHere's a pic of the usual result.CheersDarren Quote Link to comment Share on other sites More sharing options...
GT6 M Posted June 22, 2016 Share Posted June 22, 2016 Why is ther weld on the collar,!!!and why a collar on, got 40 odd int shed here, non like thatIf its to hold bearing in spot, then where is it gonna go,it cant go inwards, and it cant go oot wards, most odd.And, yer luky it did,nt go where welds are,as iff de that ona Spitty type shaft { dust cover }it,ll snap wid in a 100 milesYe been hooing aboot wid one wheel spinning, or both spinning, then suddenly getting grip, an biting !!!can cause tooo much load on one shaft = what ye got .Out of intrest, ive had 2 in wid broken half shafts, both on the smaller side too, and, bot gone in exactly same spot as yours, IE, where the splines start.just see remnants oft splines on yoursMM Quote Link to comment Share on other sites More sharing options...
dazzer Posted June 22, 2016 Author Share Posted June 22, 2016 Well spotted on the welds.They are a modification that Dennis Vessey do to all the race LSDs.I believe its to stop the seal being pushed out and loss of diff oil. They are all like this and its stated on the build bill as 'modify output shaft Brg retainers' Yes the diff does get a lot of full power drop clutch hard surface loose surface into reverse and pop the clutch again and repeat... I think the expression is abuse. Only on clubman rallying and the odd autotest though. Quote Link to comment Share on other sites More sharing options...
GT6 M Posted June 22, 2016 Share Posted June 22, 2016 Butt, the seals / shaft cant go any where, !!!unless the outer seal ring is seveeerly gone/missing,!!!I tend to fit 2 in, as most of the smoothe bit that seal sits on isall rusted/ruffly pitted,2 seals fit in just nice. try it.M Quote Link to comment Share on other sites More sharing options...
Gt6s Posted June 23, 2016 Share Posted June 23, 2016 The weld is the problem here. Seen this happen on swing spring shafts where the dust shield has been tacked on to the shaft. They then snap. It might seem like a good idea but it most certainly is not. Any you see like that, get rid !Laurence Quote Link to comment Share on other sites More sharing options...
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