Hi Brad,
Regarding fulcrum pin failure, I can only refer you to others. It definitely has happened. Hence my recommendation you have yours magnafluxed as long as you have them out.
There is some discussion of what is going on to cause them to fail on the
www.tigersunited.com web site, written by Tom Hall, a mechanical engineer back in 1996. If you go to the site, click on the search function. Enter "Potential Suspension Defects, the Big Picture". When the results come up,
click on topic number 1. Scroll down about 6-8 or so subjects until you find the subject header that reads as what you put in the search box. It is a long post covering a lot of things, with part of it addressing the fulcrum pin failures, etc. Hopefully, in all of that is some information still useful today.
Cheers,
Gene
Edited to add underlined step which originally had been left out.