Anyone ever try Superzilla had a wheel to get off, was all rusted on. Sprayed with Supperzilla let it set for a little while and it cam off pretty easy. This stuff works. Had a pulley to get off a hydro and could get to the top through the frame. Took a pry bar and hammer and tried to drive it off no luck. Sprayed with Superzillz put a longer bolt and washer in the hydro shaft so pulley would not fall off and get bent when it hit the floor, it came off easy.