[66Submarine]

Disk brakes do resist fade better than drums, but pulling hard to one side isn't just something drum brakes do; you have a larger diameter drum or greasy shoes on one side (or some other similar issue).

With drum brakes, turning (or wear) increases the diameter and reduces contact and braking for that wheel; the truck will then pull to one side as a result.

With disk brakes, rotor wear/turning just decreases the thickness of the flat sides of the rotor, so the contact area is still the same; that's why they don't have the tendency to pull to one side that drum brakes do.

Drum brakes are also "self-energizing", which accentuates it.

If your brakes pull hard to one side you need to fix them.