BB i have just been informed that triumph never did the early con rods with detactchable shell bearings but Hughie Hancox did do convertions of the early rods to bearing shells so it is possible have the old rods machined,a common upgrade was to change the rods and crank to the later large journal type though.Unfortunately i am working nights this week so cant do the longs arms tonight, but will be able to make the Dog and Fox next week what time do they meet. cheers steve