Originally Posted by invertmast

based off your pictures of the bigwheel brakes, the lack of breaking is because of the lack of surface area between the wheel pads and the brake drum.

if you were to fill in the area on the brake drums between the metal area’s with an epoxy so as the entire drum surface is flat, i bet the breaking action would improve greatly. If you could find some sort of thin break liner (maybe some DIY gasket maker material or flat O-ring) you could probly make them work amazingly well.