I did this on my 85 300d, however the SDs are so different in terms of parts.

On my vacuum pod I had to pull the head down and the clip would come right off.


What did you use to replace the rubber? My pod is alright, but since the rubber is cracked I couldn't find anything to replace it with. I ended up buying a whole new one, but I feel bad replacing the whole pod since all I really need is replace the rubber that is on top of it.

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-Typos courtesy of my mobile phone.