Albert,dont want to insult you but did you make sure the shoes were adjusted correctly???
people have a tendancy to adjust till they hear the slight drag and stop, well you are way to loose yet and when hitting them you wont get good contact with them, the cyl is at full stroke and still not tight on the drum.
proper way is to keep cranking on the tensioner while spinning the wheel until the bugger wont go/spin no more, this centers the shoes, critical, then back off the adjuster a ways until it spins clean, then sneak up on it until you feal and hear the slight drag of the shoe on the drum, and I mean slight! with new pads, after about 500 miles jump under it agian sneak up on it again with a little more drag, should spin with a little choo choo sound as it comes around and makes slight contact with the shoes and you should be good for awhile at that point.
I need a beer after all that work...phew.
