I did the 3 upper guides in my 88 560SL and thought they were still in great shape when I got them out. I had to really go after them with a pair of side cut dikes to get them to snap or break. Thought they could have gone on for another few years or more. At least I have piece of mind. I'd hate to open it up and see the upper 1/3 just ratteling around in there. Haeart attack.
good on you!

Did you have a pin extractor? or just bolt washers and socket?