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Front brakes provide about 70% of stopping force. Disc brakes have an advantage over drum brakes in that they can provide more stopping force without overheating (and thus loosing their stopping efficiency). I believe drum brake units are less costly to manufacture than disc brakes, so using them on the rear also saves manufacturing costs.
It has a superior design that features a greater braking force.
Simply a question of Force distributed over a much smaller area in the case of disk brakes (or higher pressure)
( 1 ) on each of the rear drum brakes
What about 1993 Pontiac drum brakes, please be specific.
Drum brakes.
This will greatly depend on what kind of brakes you have and which parts you are trying to replace. Do you have disc or drum brakes? If you have disc brakes, do you want to replace the calipers, pads, or rotors? If you have drum brakes, do you want to replace the drum, or the shoes?
No. Drum brakes expand inside a rotating drum to stop the vehicle, disc brakes squeeze in against a rotating disc.
The rear brakes on a 1984 Chevy truck are drum brakes.
Disc brakes and drum brakes.
Only the rear brakes are drum brakes. The front brakes are disc brakes. To answer your question, twist the end wing nut by your drum brake. It tightens and adjusts how much you have to press on your rear brake lever.
No, they are inferior to disc brakes. Drum brakes were used from the beginning of the auto up until the late 60s. Drum brakes are more prone to overheating than disc brakes. Disc brakes also shed water much better than drum brakes which improves stopping distance in wet conditions. Disc brakes apply pressure more evenly than drum brakes thus improving stopping distance. Disc brakes are superior in every way.