Description of ACDelco 18B478 Professional Front Brake
Inspected for balance; resulting in smooth brake operation and noise reduction. Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products. Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration.
I bought these to replace the front drums on a 1967 Galaxie 500, they work great. Don't throw away old drums, they come with no bushings. I had mine pressed at a local dealership and used a new drum with an old hub.