I do understand that about MH parts, especially for a coach this old (and this is not the first time I've run in to this problem). I have looked...and looked. For example - those parts in the above link are for 1999 and newer...No one around here can give me a part number.
I am assuming that there is - somewhere - an aftermarket part that will fit (I need to call Energy Suspension, among others). But, I don't want to start this job HOPING that I will find a part to match the old one. From what I've read, this is not an easy job...