Yes, I know that the increased pressure is helping me stop better. That it why I increased it. The drilling lets the dust out and helps with cooling, resulting in much smoother brakes.
Drum brakes collect lots of dust, and it can be a problem. I have to clean out the drums on the car quite often because of the dust buildup. It causes drag, noise, and reduces braking. The brakes are always better after I clean out the drums, and it stops better too.
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1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
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