While pulling the axles out of my '72 240z I noticed that the Grease Catcher (#56 below) was damaged, most likely by the bad bearings that were in there or a prior service by a former owner.  I'm converting to Disc Brakes and am questioning if I truly need the piece as its no longer available and its too far damaged to bend it back into shape.  Based on the image it appears that the grease catcher is used to prevent grease from entering the inside of the brake drum.  Does anyone run their rear a