Last few diff's, phew!

Down to the last few diff's to do after this week's marathon build, thank God! One more 3.63 4 stud (Spit 1500), and a 'special' a big pin 4.11 (Dolomite gearset) for one of the racers out there I think (it's going via a trader). It's thanks to the foresight of my forebear a certain John Kipping that we have in stock a wealth of factory original 4.11 gearset's, he bought everything that was available! John also bought all the big pin Marina van 4.55 CW&P's as well, and we have up until recently made a good living out of building these into the racers diffs. Unfortunately they have now all gone, pity, it was virtually bulletproof, just like it's taller 4.11 brother. I do like building diff's with factory kit, they fly together no messing. The other ratio's (3.89, 3.63, 3.27) are only available in the repro stuff coming out of Italy (so I'm told?). We have been using these off and on over the past 4/5 years, no problems with longevity, but they are a swine to build compared to factory stuff, they can take me twice as long. I wonder how the other Triumph diff builders out there get on with them, I shall have to ring around and canvas opinion. There can't be to many of us out there now, the market dosn't warrant it?
Just to spice things up yesterday I built a couple of reconditioned exchange halfshaft assemblies, two brake pipe kits (late GT6, and Vitesse MKII), put the finishing touches to an overdrive conversion kit going out to a european trader, and spent an hour or two on the phone doing technical. Part of that 'technical' was spent chatting to a respected local cylinder head guru about yet another revision to our alloy head project. I had got one of the first test castings cut up into 6 chunks so that I could post out a chunk each to respected head people World wide for their comments before commiting to production. Some interesting comments were forthcoming, most of them complimentary thankfully!Its been an interesting learning curve to say the least, but at least we have laid the foundations for the next head when finances have recovered.