I was doing a brake job for a friend, on his wifes 04 Explorer {worst brakes I had ever seen} anyway, the rear were APITA disk drum for E-brake thing so the driver side took some ten minutes worth of 3lb sledging to come off with W-D left the passanger side for today, I was a the store getting some brake fluid and cleaner saw the Blaster stuff grabbed it cuz it was cheep! The stuff worked GREAT!!! soaked it down let it sit 2 min two bangs with the hammer came right off!!! +1 for BLASTER!!!!!!!!