When I was shelling corn last fall I broke the thing that runs the sieves and shaker.  I don't know what it is called.  It is on the left side of the sheller (the cob stacker side).  It is the part on the shaker connected to the pitman.  I have everything apart far enough to where the thing is loose, but there are bolts on each side of some angle iron that is slowing me down.  I will try and maybe get a picture or two so you can see it.  Any help would be appreciated.