I've had several 50 & earlier Chevys & always swapped on 51-54 brakes . It requires everything from the spindle "out" , meaning the backing plates, cylinders, shoes, hardware , & drums. The 51 & up Bendix brakes are a big improvement over the earlier Huck system. A lot of hot-rodders are swapping Mustang front suspensions under old Chevys , so the suspensions they are replacing are around if you look.