JPB wrote:Uprated trunnions designed to use semi-liquid grease, rather than oil, were - last time I checked - available from Reliant for the Rebel, thing is; those are specified as suitable for GT6 & Vitesse, Spitfire & Herald aren't mentioned on the packaging, does this mean that the Spitfire takes a smaller trunnion with smaller thread? If so, then this won't help you, if not, and Spitfire and GT6 are the same, then it would be well worth your asking both Reliant themselves (Partsworld) and Graham Walker about these bits as they certainly used to be far cheaper than buying the older type of trunnions from Triumph specialists.
I've seen broken links and stripped trunnions on the heavier cars that use these; Scimitars and Vitesses but rarely on Spitfires and Rebels - then only when someone had put grease in the trunnion in error, causing the flutes to clog and making it impossible for future applications of the correct grade of oil to be squirted through.
All trunnions the same, but different uprights.
Not sure how a different trunnion will help, it is cracks in th evertical link that cause all the problems, and that is usually lacl of oil in the past, or indeed an idiot thinking grease will be fine

or in one case a bloke who, even though he was shown the workshop manual, decided he knew better.
Had two break, both os, on the same car a couple of years apart. First tme 3 hours to get home 1 mile. Second time I took a complete spare upright and trolley jack to sainsburies and did the job in the car park. About 25 mins.