[GRX]

Drums will be fine. Main issues are fading/heat soak during long stops, and when people do not have worn drums turned with new shoes. Amazes me how often I hear people say drums never need to be turned. Run a dial indicator across them when on the lathe. They can & do wear unevenly. No way you will have full braking potential when new shoes do not make full contact with a non-parallel drum surface.