If i cant resuscitate the guide rail through judicious whacking with a 20 pound sledge- then perhaps its time to consider a new rail system :-)
Ha! Nothing beats good old fashioned elbow grease. Let me know how it works out, or whether my suggestions above won't work. I'd be happy to look into the possibility of alternate solutions.
I think with all the pins etc you have shown me - If i need to replace tracks and pivots it should be relatively easy to do. I do notice that my current pivots are all steel with no nylon cap - so a complete replacement of pivots, tracks etc would be needed- I have graduated down to the 2 lb singlejack for the fine repair work - haha thanks again for your help.
Always happy to be of service. Let us know how it goes!