Quoted from Vermont:This same thing just happened to me. I read through various suggestions of where to order, but it looks like there are various sizes of replacement rubbers. This is my first pin and first busted rubber, so I'll ask a very noobish question: is there a list so you know which size to get for which part? Do I just measure it with a ruler? Are you better off ordering a full "set"? (Do they even do that?)
If it's a sling, do you replace both slings at the same time so they are consistent?
Anything else I should keep in mind?
The manual has a list of all the rubber and their sizes. See page 37 in this PDF.
I think there was one discrepancy with one of the post rubbers and what size it should be. I'm not recalling exactly which. But if you order a full set, plus one extra for each spot, you should be good to go. Titan Pinball has a database of user-created rubber kits which are fairly trustworthy. You should cross-check the kit with the info in the manual to make sure you're getting all the necessary rubber.
This is the kit I'm using. The colors match the location so the rubbers don't stand out.
If you've played 1000 games, I'd say you might as well do a full rubber replacement. I'm guessing it's not just the sling rubber that is worn. It will require removing a surprising number of things (habitrails, glider) to get to them, but if you take your time and take pictures at each step and of each item removed in order, you should not have any issues replacing the things you removed to get the rubbers on.
Be careful, work slowly and do not try to stretch rubbers around things like plastics. Most plastics must be removed to gain access. Some can be gently lifted/bent a bit after being unscrewed to slide a rubber underneath and onto a post (like the APRIL "6" plastic, once the habitrail and the easy to access screws have been removed).