FINDING JOHN DEERE CHAINSAW PARTS

[northcreek2624]

I have a JD, 70v saw(20") which was made by the same people who make the Echo saw.It is an awesome saw and I would like to keep it running forever if possible.I realize that it's a 20 year old saw but,the reason I chose JD was their reputation for providing parts for their stuff no matter how old,this kind of ticks-me-off and influenced my decision to buy another brand of CUT last year.
Forgive my rambling,what I wanted to ask is if anybody knows of a source for obsolete JD chainsaw parts?.....thanks for listening,Mike