Now that you mention it, the car's running just a tick free :-)
And I know what a wheel about to fall off feels like. About a dozen years ago, a 1-ton GMC van I was driving all of a sudden picked up a real loose feel. No sooner did I get the thing on the (raised) shoulder of the freeway than the left half-axle came off, complete with tire, wheel, and brake drum.
It must not have had full floating axles and the bearing retainer ring came loose on the axle and let the axle slide out. A full floater wound not have done that...