rear brake drum removal

1997 hyundai elantra, need to remove rear drums, does anyone know the secret & what size socket to use on wheel bearing nut?

don't know what the size of the nut is off the top of my head, but there's no secret to it. Pull the nut off and it should come off

judging from your question i'm going to go out on a limb and say that you are probably not familiar with reassembly, so to save you some frustration in a few hundred miles here is a link to assembly instructions published by timken. one of the steps refers to loosening the nut to obtain a lash of .001" - .007" but if you don't have a dial indicator the way to get remarkably close to a lash of .002" is to loosen the nut until it is possible to use a flat blade screw driver to move the washer without prying against the hub. it should slide with a little bit of friction until you quit moving it and stay at that position without falling. once you obtain the correct setting of the nut apply the retainer which is probably a stamped sheet metal cup and cotter pin, or possibly a locknut.

http://www.timken.com/industries/automotive/autoaftermarket/techtips/AutoTechTips_Vol%202_Issue%201.pdf

learn more than you ever wanted to know about bearings, their modes of failure, and maintenance procedures here:

http://www.timken.com/industries/automotive/autoaftermarket/techtips/techtips.asp