I had been noticing that on of the left rear wheel was protruding more than the right one so I decided to remove both and found that drum brakes are of different sizes. As you can see from the pictures, one has the 'built in' spacer and the other one is standard. I don't know why or how the previouss owner did this but I remember that when I removed the gas tank some months ago, I noticed that on the wheel well somebody had hit it with (what looked to me) a hammer. I imagined that at some point there where wider wheels mounted and more clearance was needed, but didn't paid much attention to it....until today that saw the different drum brakes.
So, my question is, should I replace one of the brakes or the car will be fine with the ones I have right now? My initial intention is to have standard drums, but I don't know if I will need the 'spaced bult in' ones when I (and only when I finally find) put reverse rims on the car.
Also, with the standard drum (second picture), the tire is barely an inch from the shock. The previous owner put a wheel spacer but it is still too close. Should there be more clearance?