My 1968 Mustang has four wheel drum brakes, which the car’s previous owner spent 800 bucks to have a shop rebuild the stock drum brakes. I got the receipt with the car. So I was a bit surprised when my local state inspector failed the car because one of the rear brake shoes was installed backwards. I asked the inspector how he could tell and he told me “the little shoe goes in the front”. I’ve installed dozens of drum brake shoes in the past twenty years or so, and now I’m wondering how many I may have inadvertently installed backwards. If you look at the shoes, they are actually mirror images of each other. Either shoe will fit either side and your springs and adjusters will slide right into place. The difference is that one shoe’s friction area has a smaller surface than the other.
I learned something new today. I hope maybe you did too. Happy wrenching!