Hi Neil, I pressed out the pin you are talking about and replaced the worn titanium pin in my 10s Red derailleur with it! It's a known fault that the ti pivot pins on 10s Red wear out and can fail catastrophicly; this Force derailleur I actually bought on eBay for just that part, and the retaining screw.Hi,
I can use the spring, I think. Where is the pin that should be attached to the cage plate in the foreground? It's like a little tower sticking up from the large hole almost dead centre near bottom of picture and it's just gone - did it break off? Is the derailleur stuck on the dropout? All the other bolts have gone/been re-used?
If you can pop the spring in an envelope and post to me, would a fiver do it? If so, send me an email address to PayPal F&F and I'll sort it.
Best,
Neil