It depends on the vehicle and how hard you'll be braking!
Basically drum brakes are quite old fashioned and can 'lock' under hard braking or if they get wet. This can cause the wheel in question to skid!
Most new vehicles these days unless they are very cheap (usually motorbikes) come with disk brakes. They won't lock if they get wet or under hard braking.
Also disk brakes can have an extra feature called ABS - or Anti-lock Braking System - what this means is that when you press the brake pedal the brakes automatically turn on and off a hundred times a second or so - actually allowing you to steer. Very good. Nearly all cars and many motorbikes come with this feature as standard or an option.
In case of cost..drum brake is better than disc brake.
When disc brakes are applied, a caliper squeezes the brake pads against the disc and the wheel slows. When drum brakes are applied, curved shoes located inside the drum are pushed outwards, rubbing against the inside of the drum and slowing the wheel.
because disc brakes provide more uniform torque throughout than drum brakes during braking..
Better hope it is not a drum brake- it was originally equipped with a disc brake caliper.
Take the wheel off to see if you see a caliper for a disc brake or a drum for a drum brake.
With rear drum brake:-The brake drum may be out of round or may have a rust spot in it. -The brake drum may be cracked.With rear disc brake:-The brake disc may have extreme lateral runout or be mounted improperly. -The brake disc may be cracked. This would be dangerous-Combination of soft brake pads and a directional finish on the disc surface. A directional finish may go away with use and take the noise with it.Regardless of brake type:A brake disc or drum mounted to a bent hub flange or bent axle shaft can cause this noise.
pad brakes are disc brakes, it's known as changing brake pads for disc setup and changing brake shoes with drum brake setup.
If you can see the brake caliper and rotor, then it has disc brakes. If all you see is a large drum then it has shoes. If you can see the front brakes thru the wheels, you can identify disc brakes. If the rear look like the front, then they are also disc brakes. However if the rear look much different, then chances are they are drum.
Depends on the vehicle; could be drum/shoe arrangement with cable actuation; could be rear disc brake pads with cable or could be rear disc brake with inner shoe and drum inside the rotor.
Disc brakes are not subject to "fade" which occurs when drum brakes overheat and lose the ability to stop, another advantage of disc brakes is that they tend to stop in a straight line unlike drum brakes which often "pull" to one side. Yet another advantage of disc brakes is that they self adjust by drawing brake fluid in behind the piston while it is common for the self adjusters in drum brakes to seize due to corrosion then the drum brakes quit adjusting then the brake pedal goes lower and lower.
Master cylinder or drum brake (hydraulic slave) wheel cylinder or disc brake caliper cylinder? drum brake shoes rear
If you have a booster you need a vacuum line to perform effectively, disc or drum.