How do you replace rear brakes on 1978 B300 van?

To replace the rear brakes on a 1978 B300 van, start by safely lifting the vehicle and removing the rear wheels. Next, remove the brake drum by unscrewing the retaining screws, if present, and gently tapping it off if it's stuck. Replace the brake shoes by removing the old ones and installing the new ones, ensuring all springs and hardware are correctly positioned. Finally, reassemble the drum, wheel, and lower the vehicle before testing the brakes.