Steve P Posted April 25, 2011 Share Posted April 25, 2011 Did Heralds have drain plugs on the diff?my 1360 has one and i didn`t think they did normally.Its a 1968 convertible that`s been off the road since 1979.Steve Link to comment Share on other sites More sharing options...
Zendervision Posted April 25, 2011 Share Posted April 25, 2011 Mine does not. I think they were deleted at some point. Link to comment Share on other sites More sharing options...
Jason Posted April 25, 2011 Share Posted April 25, 2011 I think only early ones had a drain but it's an easy and fairly common modification (the boss is in the casting just not drilled and tapped), Firms like Canleys have been offering these on an exchange basis for a while now. Link to comment Share on other sites More sharing options...
heraldcoupe Posted April 25, 2011 Share Posted April 25, 2011 Jason's right, drain was deleted quite early in 1200 production, but plenty have been added to later diffs, or rear casings swapped.As a sanity check I'd recommend checking the number stamped in the diff nose, you don't want to find out the hard way that someone's fitted an earlier diff.....Cheers,Bill. Link to comment Share on other sites More sharing options...
Steve P Posted April 25, 2011 Author Share Posted April 25, 2011 If its an early one,whats the problem?weaker,different ratio?Also what should the number on the nose be if its a 1360 one.ThanksSteve Link to comment Share on other sites More sharing options...
heraldcoupe Posted April 25, 2011 Share Posted April 25, 2011 The 13/60 diff will have the prefix GE.Earlier diffs (up to mid 1967 or thereabouts) have thinner output shafts which are prone to breakage with anything greater than a 1200 engine. While the Vitesse 1600 always had the thin shafts (which broke readily), the thicker shafts were introduced shortly after Mk3 Spitfire production began.Cars like the 1200 had both thick and thin shaft diffs during production. Prefix is GA, with the change point somewhere in the region of GA220XXX, the exact number is buried somewhere in the parts list. Whatever the exact number, the thicker shafts came long after the drain plug was deleted.A useful lookup of prefixes and suffixes for other Triumphs can be found here:http://club.triumph.org.uk/thecars/technical/prefix/suffixtableA replacement diff with drain plug might have come from a Herald, Spitfire, Vitesse or GT6, but the drain plug would point towards an earlier Herald (G, Y, GA), or possibly very early (FC) Spitfire or Vitesse 6 (HB). Or as said earlier, it might just be a modification to the existing diff,Hope that helps,Cheers,Bill. Link to comment Share on other sites More sharing options...
Casper Posted April 25, 2011 Share Posted April 25, 2011 Change points: GA23760 and also FC120000C. Link to comment Share on other sites More sharing options...
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