Even though there's supposed to be a .062 washer in there I've seen 727's operate fine with a .084 in them. Someone probably put it in to reduce end play. Since your in there you might as well replace it with the correct one and use a thicker washer between the pump and front drum to get the clearance tightened up. BTW: I have ran the end play as tight as .018" with no problems. In fact I generally shoot for .020" clearance or as close as I can get to it but don't be alarmed if you can't get it that tight with the thickest washer in the front. Seen many that would only come down to .035" or so
