'90 LeSabre steering column noise

I have this car with 112,000 miles and recently it has started to make a rubbing noise when I turn the wheel during parking etc. It sounds like a dry steering column bearing. I've been inside these columns many times to replace lock cylinders, turn signal switches, etc. but never looked into the bearing aspect. Do they have a upper and lower bearing? and is there a way to lube them or do they need to replaced. If a big job maybe leave it go till it worsens and then try to replace the column. I guess I'm looking for a simple way to quiet this noise if ther is one if possible. Thanks, Formzy

well sinc eyou have experience than make the column as visible as possible.

one you have it that way then try a oil can or wd-40 to see if it quiest down at all..