I had that problem once too. Worn out bearings. Too bad they aren't easily changed themselves! No need to tag the wires, just transfer each wire one by one to the new cap so you don't mix them up (even more important on a V-8). Take a sharpie and mark a spot where your dizzy and head line up, Like drawing a line from one to the other. Then when you put the new dizzy on you can see about where the other one was so your timing will be close if you don't have a timing light. Does that make sense? The plugs and sockets to the dizzy can be tricky to disconnect. You have to pull the plug and socket off the metal tab as an assembly by depressing a plastic tab on the plug/socket. Then you can work on pulling the plug from the socket. I make stuff sound confusing but I cussed a bunch at that plug once before I figured it out.