Thank you. I bought it...Here is the link;
Post in thread 'Progress'
https://e9coupe.com/forum/threads/progress.31902/post-271461
I remember the first time I saw the balancers on my heater fan. I was kind of fascinated by it and torn between two reactions: 1) Wow, what amazing attention to detail that they balanced the heater fan, and 2) What a crappy squirrel cage fan that they had to balance it.The fan (squirrel cage type) in my car was balanced with two types of omega spring steel clips over the blades.
Just so you know; if it shakes or hums, it may be off- balance.
(I am aware that I'm just giving you a problem here, as I have no solution:
I do not how to get it balanced if it would be needed ....)