A question of originality
I worked at a shop in my younger years and worked on all the Hillsborugh Sheriff cars. They would get between 3000-12000 miles on a brake job. I learned the art of using a rearcing tool. Years ago you could by 1,2 over size shoes.Drums are especially troubling because many are not available anymore. When you turn a drum, you of course make it larger. But the shoes are designed for a specific diameter, so when you use shoes in an oversize drum, not all the lining makes contact, and the center of the shoe has to work harder, which will glaze it and vastly reduce effectiveness. "Back in the day" you could have shoes arced, or in some cases shims intalled between lining and shoe. "Good luck" finding anyone with either capability.
Like this:
Drum Brakes
View attachment 1715670226
Arcing machine:
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Ends up like this:
View attachment 1715670229
