“Self Servo” drum brakes have the front and rear shoes connected and the front shoe’s leading edge is shorter than the rear shoe and reversing the position of the shoes will cause the brakes to lock up quickly when applied and when the drums are turned to the limit the shoes need to be “crown ground” to put the full length of the friction pad in contact to reduce grabbing despite having the front lining shorter. All the FWDs seem to have a fixed pivot point on the backing plate to eliminate “self servo”
And I saw a Dodge pickup at the dealership getting the entire rear end replaced and recognized that the shoes were reversed. When I asked what was wrong with the axle the service manager said the brakes were locking up and after replacing the master cylinder and booster and proportioning valve and repeatedly inspecting the rear brakes the factory sent a new axle. It was difficult to get out of there without laughing.