Herman Miller Aeron Classic Chair - Bushing (Spacer) Replacement

How to replace the Aeron Spacer part? With this tutorial you will learn how to replace the bushing, or the spacer, for the Aeron Classic chair.
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[@G4rg4m31_]

Hello, thank you for the video.
Can you maybe include how to tell if the bushing/spacer is good or not and the symptoms that a user would experience if it was bad?
I have a 1998 aeron that I am going to slowly refurbish but I'm not sure if my bushings/spacers require replacement or not.

[@OfficeLogixShop]

Hello there. The Spacer is one of those parts that you only need to replace if they're broken or cracked. Unless you can see it's actually damaged, you'll be fine!