This info came from cub cadet parts lookup site:
https://www.cubcadet.com/en_US/conte...84f8cc1caebc/y
It doesn't show the spacer in the clutch assembly. The factory setup works great for 50 plus years with no problems. Something not set right if you are breaking teaser spring. You don't need pulling parts in and daily use tractor.
I've Been using this setup in a IH Cub Cadet 100 that has a 16 horse Kohler in it for 10 plus years. Tractor is mainly used for ground engaging work like pulling a modboard plow or a Cannon Earthcavator.
Here is link to clutch buildup in tech section:
https://www.onlycubcadets.net/forum/...ad.php?t=54233