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Sept. 13, 2023, 8:42 p.m. -  the prophet

If you are doing a full rebuild, you will replace the seals in the seal head/bearing as well. This requires removal of the shim stack, so you can pull the seal head off of the damper shaft. I have never heard of  a shop changing the oil without putting fresh seals in at the same time. This design makes it slightly easier as the shim stack remains captured and you can't accidentally end up with a pile of loose shims on the floor.

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