Separated means that the tread is separating from the tire. It isn't always visible, but can show up when the tire is spinning.

You could have a bad tire, or it may be out of balance. You could even have an out of balance brake drum. Check the tire first and go from there.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket