Check with blewbyu (member here) as he has done one I believe. Definitely had one for sale about a year ago ??? He is located in south Florida. Any pictures ??
Good luck with your project
If you're referring to my post unfortunately it is attached to my tach and I was just displaying it to reinforce my theory about the difference in 67/8 and the 69 part. Sorry not trying to mislead.
March 7 2024 there is the same posting looking for this mount in general discussion forum. At that time I also said the same thing but didn't get any clarification on my theory. Not saying I'm right , it's just my theory.
Did you line up the spline properly ? Can you get the big washer and nut on ? How about the torque setting ? I can't remember what it is but it's in the service manual.