I was searching the web for info regarding my 69 Charger RT's rear brake drums and it lead me to this thread. The car is currently in storage and I am getting parts at this point. I'd like to redo the brakes. Although I don't have easy access to the car I was able to have them email me the attached picture. The drums have a 3641x number on them. The last letter is blurred but is likely an 8, (or maybe a 0 or 6). Doesn't that number mean this car has 11x3 rear brakes? If yes where can I get brake shoes etc as they seem really hard to find.

If I decide to put the correct setup on it instead, I assume that would be 11x2.5 right? since the car has drums all around and is an RT. Does anyone sell a complete 11x2.5 setup to just bolt on and be done? Are there any other concerns I should have if I switch back being what's on there now? Thanks and any advice will be appreciated.