Not to defend the guy, don't know anything but the experience with Wayne...but where can you get these for $25?
The current part number I find is 0413454-1 List $183 available new for $131.
I can't confirm your part number, but I did purchase a set of yoke collars for my '76 M model for around $35 from
www.iwantcessnaparts.com [
iwantcessnaparts.com] just last week.
