‘73 Spindle/knuckle bearings Install w/hub

If you mean the cones, no, they are a slip fit, but not really "sloppy." Maybe examine the spindle and bearing, try them first, and crocus/ sandpaper on the rough spots.

MAKE CERTAIN the hub has not formed a "trench AKA sometimes you drive the cup in, and there's damage deep inside, then the cup is loose after install

There's a 73 manual you can download from MyMopar.com. IT GOT there because of some of the guys right here. I think it's in the "wheels" section is the proper tightening/ torquing procedure for the disk brake hubs